a large solid piece of material that is square or rectangular in shape and has flat sides
块, 砖
the physical property in matter that causes it to experience a force in an electromagnetic field
电荷, 电量
describing weapons that are powered by the energy produced either from nuclear fission or a combination of fusion and fission reactions
核
(physics) an oscillating movement by which energy is transferred without the transport of matter, such as light and sound
波
to make something such as a process, piece of equipment, etc. start working
激活, 启动
real and tangible, existing in physical form that can be sensed or experienced
具体的, 实在的
a physical substance that occupies space and exists in every material in the universe
物质
(physics) the amount of force exerted per area that is measured in pascal, newton per square meter, etc.
压力
the energy transmitted in the form of particles or waves through the space or a matter
辐射
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
密度
(physics) a source of power that is required to do any work that may exist in potential, kinetic, thermal and other forms
能量
(physics) a nuclear reaction by which the nuclei of atoms combine and form a heavier nucleus, producing nuclear energy
核聚变, 聚变
(physics) the universal force of attraction between any pair of objects with mass
重力, 引力
(physics) the property of matter that gives it weight in a gravitational field and is a measure of its inertia
质量, 物理质量
to strengthen a substance or structure, particularly by adding extra material to it
加固, 强化