您要查找的是不是：
- High specific gravity plastic test tube rack has been chosen to ensure that there is good stability with no tendency to float in circulating water baths, Autoclavable. 特殊重质塑胶一体成型，可蒸气消毒，适用于水浴器内不会浮起，特殊的设计完全没有死角，最经济耐用的塑胶试管架。有四种颜色可供选择，红、白、蓝、黄。英文简述：
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- test tube rackn. 试管架
- The solution in the test tube is boiling away. 试管里的溶液不住地沸腾着。
- 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。
- 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。
- There is a green residue in the bottom of the test tube . 试管底部有绿色的沉淀。
- The test tube is closed at one end with a hydraulic seal. 试管的一端为水封所封闭。
- Be sure to label all the test tubes . 一定要把所有的试管都贴上标签。
- 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?
- The test tube has been blocked off. What's to be done? 实验试管被堵住了。怎么办?
- A test tube is closed at one end and open at the other. 试管一端封闭, 一端开口。
- Be sure to label all the test tubes. 一定要把所有的试管都贴上标签。
