| Chinese | English |
| 压缩 | compression Reduction in the volume of a substance due to pressure (物质由于压力而体积减少。) |
| 压缩 | compaction Reduction of the bulk of solid waste by rolling and tamping (用滚压或填压方式缩减庞大的固体废弃物) |
| 压缩机 | compressor A mechanical device 1. to provide the desired pressure for chemical and physical reactions, 2. to control boiling points of fluids, as in gas separation, refrigeration, and evaporation, 3. to evacuate enclosed volumes, 4. to transport gases or vapors, 5. to store compressible fluids as gases or liquids under pressure and assist in recovering them from storage or tank cars, and 6. to convert mechanical energy to fluid energy for operating instruments, air agitation, fluidization, solid transport, blowcases, air tools, and motors (一种机械装置。1. 为化学和物理反应提供所需的压力。2.控制例如气体分离、制冷和蒸发等流动体的沸点。3.排空空体积 4. 传送气体或蒸汽。5. 在一定的压力下以气态或液态的形式储存可压缩的流动体，以方便其储放。6. 为空气搅动、流体化、固体运送、鼓风、空压工具和马达等的装置操作，将机械能量转变为流动能量。) |
| 浓缩 | enrichment The process of increasing the abundance of a specified isotope in a mixture of isotopes. It is usually applied to an increase in the proportion of U-235, or the addition of Pu-239 to natural uranium for use in a nuclear reactor or weapon (在混合的同位素中增加某一特定的同位素含量的过程。通常应用于增加铀-235的含量，或将钸-239加入天然铀中，以便用于核子反应器或武器中。) |
| 浓 凝缩 | concentrate |
| 浓缩 | concentration process, The process of increasing the quantity of a component in a solution. The opposite of dilution (增加溶液中某一种成分的量的过程。相反的过程为稀释。) |
| 浓缩铀 | enriched uranium Uranium whose concentration of uranium-235, which is able to sustain a nuclear chain reaction, is increased by removing uranium-238 (移除铀中的铀-238，以增加铀-235所占比例，只有铀-235可维持核链连锁反应。) |
