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related to atoms, the smallest units of matter, including their structure, properties, and interactions
原子, 与原子相关的
the physical property in matter that causes it to experience a force in an electromagnetic field
电荷, 电量
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
密度
(physics) the universal force of attraction between any pair of objects with mass
重力, 引力
(physics) any of the smallest units that energy or matter consists of, such as electrons, atoms, molecules, etc.
粒子, 元素
a natural reaction or behavior that occurs automatically, without conscious thought or reasoning
本能
the chemical processes through which food is changed into energy for the body to use
新陈代谢
(biology) the slow and gradual development of living things throughout the history of the earth
进化
(biology) a change in the structure of the genes of an individual that causes them to develop different physical features
突变, 基因变化
an unhatched or unborn offspring in the process of development, especially a human offspring roughly from the second to the eighth week after fertilization
胚胎
a cell or a group of cells created through a natural or artificial process from a source that they are genetically identical to
克隆
something that triggers a reaction in various areas like psychology or physiology
刺激, 刺激物
a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7
酸
a light silver-gray metal used primarily for making cooking equipment and aircraft parts
铝, 铝 (中文)
a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring
铜
a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past
铅, 重金属
a substance of small size and equal sides, formed naturally when turns to solid
水晶, 晶体
the different elements that form something or the arrangement of these elements
组成, 构成
a device that produces a powerful and concentrated beam of light that can be used in medical procedures, for cutting metal objects, etc.
激光
an object that produces an invisible field capable of attracting certain metals without physical contact
磁铁, 吸引力
related to heat or temperature, including how heat moves, how materials expand with temperature changes, and the energy stored in heat
热的, 热学的
a machine that produces electricity by converting mechanical energy into electrical energy
发电机, 电力发电机
a small remaining amount or part of a thing after it has been taken, used, etc.
残留物, 剩余物
