您要查找的是不是：
- Because of mechanical limitations and to increase efficiency, most compressors utilize staged compression, usually with intercooling between stages. 在东莞，已经有捐出全部身家助学的坤叔，虽然他的事迹让人动容，可是他的做法肯定没有多少人敢去'复制'。
- single stage compression 单级压缩
- THE COMPARE OF DOUBLE - STAGE COMPRESSION AND CASCADE REFRIGERATING SYSTEM 两级压缩与复叠式制冷方式的比较
- Study on Subcooling and Energy Saving in Two Stage Compression Cycle 双级压缩制冷循环的过冷与节能
- single - stage compression 单级压缩
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- Two Stages Compression Type Gas Control Pump 二级压缩式防气泵
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- The bridge crosses the river in a single span. 河上那座桥是单跨桥。
- Do you want a single or a return ticket? 你要单程票还是往返票?
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- I have had to work for every single penny I earned. 我挣的每一便士都是辛苦工作得来的。
- The huntsman fired a single shot at the lion and settled its hash. 猎人朝那只狮子开了一枪，把它打死了。
- A Study of Optimum Conditions for Two- Stage Compression Ammonia Refrigeration System 冷库氨双级压缩制冷系统最佳工况研究
- Five twenties and ten single, please. 请给我5张20元的和10张1元的。
- She wore a single orchid on her evening dress. 她在晚礼服上缀着一朵兰花。
- The Simulation and Analysis of Condensing Unit in Two - stage Compression Refrigeration 双级压缩制冷冷凝机组模拟及分析
- Up to yesterday, I thought he was single. 直到昨天，我一直以为他是独身。
- Can you let me have a room with two single bed? 可以给我一间两张单人床的房间吗？
