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- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- Ref. Freon piping to be done air-tightness test and vacuum test. 冷藏氟利昂管系密性试验和真空试验。
- The solution in the test tube is boiling away. 试管里的溶液不住地沸腾着。
- Perform the vacuum test using HF Electric- Spark Vacuum Tester. 用高频电火花真空检测仪检测真空。
- Put some iron nails at the bottom of a test tube. 把一些铁钉放在试管的底部。
- He mixed chemicals in a test tube. 他把化学药品混合在试管里。
- He never held a test tube in his hand. 他手里从没拿过试管。
- Take care not to break the test tube! 当心别把试管打碎了。
- Take care not to break the test tube. 当心别把试管打碎了。
- He demonstrated the principles with chemicals and test tubes. 他借助化学药品和试管讲解了这些原理。
- Accommodation air-condition Freon piping to be done air-tightness and vacuum test. 房舱空调氟利昂管系密性试验和真空试验。
- He added a small amount of water into the test tube. 他往试管中加入了少量的水。
- Take care not to let the gas in the test tube blow back. 当心别让试管里的气体爆炸。
- Then she poured the liquid out of the bottle into a test tube. 然后她把液体从瓶子里倒进一个试管。
- Low temperature environment is simulated by using a cascade refrigeration system in the thermal vacuum test facility of spacecraft subassembly. 卫星部组件热真空试验设备制冷系统提供试验设备的冷黑环境。
- There is a green residue in the bottom of the test tube . 试管底部有绿色的沉淀。
- The design and thermal vacuum test results of a deployable radiator with loop heat pipes for the space application are presented. 当主动控温的输入信号为储液器上温度时，只能实现蒸发器的温度控制而不是热源的温度控制。
- The test tube is closed at one end with a hydraulic seal. 试管的一端为水封所封闭。
- Please see the record of the previous buring pot after changing new pad, other countries have no records of buring test by this product, only have the record of vacuum test. 原来烧过的罐子换了新垫子后的测试纪录;请看一下.;其它国家没有产品燃烧测试纪录;只有整理了真空测试的纪录
- WHEN YOU BEAT OFF IN A TEST TUBE FOR YOUR SCIENCE PROJECT? 你射在一支试管里当作科学作业?
