A ball pump is a small device used to inflate sports balls, like soccer balls, basketballs, or footballs. It usually has a needle attachment that fits into the valve of the ball. The pump works by pushing air into the ball to increase its pressure, making it firm and ready for use. Ball pumps are commonly used by athletes, coaches, and anyone who needs to keep sports balls properly inflated for games and practice. Some pumps are manual, while others are powered by electricity or batteries for quicker inflation.

What is a "ball pump"?

ball pump

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A two-way radio is a communication device that allows users to both send and receive voice messages. Unlike traditional telephones, which rely on cellular networks, two-way radios use radio waves to transmit signals over short to medium distances. They are commonly used in situations where quick, reliable communication is needed, such as in emergencies, by security teams, or in construction sites. Two-way radios are typically portable, with a push-to-talk button for transmitting and a speaker or earpiece for receiving messages. They are valued for their simplicity, durability, and the ability to work without needing a phone network.

What is a "two-way radio"?

two-way radio

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A rangefinder is a device used to measure the distance between the user and a target. It is commonly used in sports like golf, hunting, and archery, as well as in activities like hiking and surveying. The rangefinder works by sending out a signal, like a laser, to the target and measuring how long it takes for the signal to bounce back. This allows the user to determine the exact distance. In sports, rangefinders help players make better decisions by providing accurate distance measurements for shots or other actions.

What is a "rangefinder"?

rangefinder

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A dampener is a device used to reduce or absorb shock, vibration, or noise. It is commonly found in various types of equipment, including sports gear, machinery, and vehicles, to make the experience smoother and more comfortable. In sports, a dampener can be used in items like tennis rackets to lessen the impact felt during play, making it easier on the player’s hands and arms. Dampeners help to prevent damage, improve control, and reduce discomfort caused by repeated motions or impacts.

What is a "dampener"?

dampener

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A cycling computer is a device used by cyclists to track various performance metrics while riding. It is usually mounted on the handlebars and can measure speed, distance, time, and sometimes heart rate, pedaling speed, and height changes. Some advanced models offer GPS navigation, route tracking, and real-time data analysis. Cycling computers help riders monitor their progress, set goals, and improve their performance. They can also be useful for planning routes and measuring improvements over time.

What is a "cycling computer"?

cycling computer

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A HANS device is a safety equipment used in motorsports to reduce the risk of head and neck injuries during crashes. It consists of a collar that attaches to the driver's helmet and straps that connect to the car's seatbelt system. The device works by limiting the movement of the head and neck, preventing excessive movement during a sudden stop or impact. The HANS device is designed to protect the driver from neck strain, whiplash, and potential fatal injuries in high-speed collisions.

What is a "HANS device"?

HANS device

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An automatic activation device is a mechanism that triggers an action without needing manual control. It works by sensing specific conditions or inputs, such as speed, altitude, or pressure, and then automatically performs a task, like opening a parachute or releasing a target. These devices are commonly used in activities where precise timing or safety is essential, helping to ensure that actions occur at the correct moment or in response to certain changes.

What is an "automatic activation device"?

automatic activation device

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A stopwatch is a tool used to measure time, usually for short periods. It is often used in sports and other activities to track how long something takes. A stopwatch typically has a start and stop button to begin and end the timing, and it can display time in hours, minutes, seconds, and fractions of a second. It is useful for timing races, exercises, or events that require precise measurements of time.

What is a "stopwatch"?

stopwatch

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A belay device is a piece of equipment used in climbing to control the rope and help stop the climber from falling. It works by creating friction, making it easier to slow down or stop the rope if the climber slips. The device is attached to the person holding the rope and is used to keep the climber safe while they climb or come down. It helps the person controlling the rope manage the tension and prevent accidents.

What is a "belay device"?

belay device

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A descender is a climbing device used to safely lower a climber down a rope. It works by creating friction on the rope, allowing the user to control their speed as they go down. The device typically attaches to the climber’s harness and is used with a metal clip to secure it to the rope. Descenders are important for controlled and safe descending, helping climbers go down steep or vertical surfaces. They are designed to prevent rapid or uncontrolled descents, providing stability and control.

What is a "descender"?

descender

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A binding is a device used to attach a skier’s or snowboarder’s boots to the skis or snowboard. It keeps the boots secure while still allowing some movement for control. Bindings are adjustable to fit different boot sizes and can be tightened to ensure the rider stays attached to their equipment during activities like skiing or snowboarding. They also include safety features that can release the boots in case of a fall to reduce the risk of injury. Bindings play a key role in the overall performance and comfort of the rider.

What is a "binding"?

binding

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A fish finder is a device used by people who fish to locate fish underwater. It uses sound waves, which are sent out and bounce off objects beneath the water’s surface. The device then measures how long it takes for the sound waves to return, helping it find the depth and location of fish or underwater features like rocks or the bottom of the water. Fish finders are helpful for improving the chances of catching fish by showing where they are swimming, making it easier to target the right spots.

What is a "fish finder"?

fish finder

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A diving watch is a timepiece designed specifically for underwater activities like scuba diving. It is built to withstand high pressures and is water-resistant, often to great depths, making it durable enough for underwater use. These watches usually feature clear, easy-to-read dials, luminous hands, and markers, ensuring visibility in low-light conditions underwater. Many diving watches also have a rotating ring that allows divers to track time, helping them manage their air supply and time spent underwater. They are essential for divers who need to monitor time safely while submerged.

What is a "diving watch"?

diving watch

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设备

“设备”的英文单词

Devices

English Words for "Devices"