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- Finally, the survival ratecould reach 50% when the hardened rooted test tube plants wastransplanted into the medium with 1/3 vermiculite 1/3 ruby mica and1/3 coconut husk. 一品红的移栽炼苗基质以1/3蛭石+1/3珍珠岩+1/3椰糠为好，成活率可达50%25。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- test tube plant 组培苗
- 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。
- Design and Research of the Billet Bidirectional Hot-centering Machine of the Seamless Tube Plant of Baotou Steel Corp. 包钢无缝厂管坯双向热定心机设计与研究。
- 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。
- Since the commissioning of the first MPM tube plant in Bergamo, the tube rolling technology has experienced a continuous development for 17 years. 从1978年第一个限动芯棒连轧管厂在Bergamo投产算起，限动芯棒连轧管工艺已经历了17年的发展过程。
- The principle , process and conditions of producing lead series products from Pb - contained waste slag , which is from TV tube plant , are introduced. 介绍了利用显像管玻壳厂含铅废渣生产铅系产品的原理、操作工艺及条件。
- Be sure to label all the test tubes. 一定要把所有的试管都贴上标签。
