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- test tube without rim 不带边试管
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- 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。
- Calyx tube without conspicuous reticulate veins. Lobes of lower corolla lip slightly wide and obtuse. 没有明显的网脉的萼筒。更低的花冠稍宽边的裂片和钝。
- 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。
- There is a retractable 156mm diameter dewcap/lens shade with a thumbscrew lock that slides smoothly over the tube without scratching. 用一个平滑地翼形螺钉锁定，绝没有擦痕。可缩回的156毫米直径包括遮光罩。
- Be sure to label all the test tubes . 一定要把所有的试管都贴上标签。
- Stamen filaments longer than anthers; leaves paired on vegetative shoots; styles short; calyx tube without laminate ring. 花丝长于花药；叶对在营养体的嫩枝上；花柱短。萼筒没有分层的环。(13
- 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?
- Be sure to label all the test tubes. 一定要把所有的试管都贴上标签。
