Low Transformation Temperature Welding Electrode 低相变点焊条
Low Transformation Temperature Electrode 低相变点焊条 ; 为了证实低相变点焊条
high-low transformation 高低温型转变
low transformation temperature 低相变点
low transformation temperature electrodes 低相变点焊条
low transformation temperature electrode dressing 低相变点焊条熔修
low-yielding forest transformation 中低产林改造
low-yield transformation 低产林改造
Land resources in Xinjiang have absolute priority in existing variety and quantity as well as inferiority in low transformation efficiency.
新疆土地资源种类、数量具有存量的绝对优势和转化效率低下劣势并存的明显特征。
Low transformation ration, non-100% sterility, unstable sterility and difficult restoration of fertility are all existing problems needing further research and resolutions.
同时存在转化率低、不育度难以达到100%、不育性不稳定或育性恢复难等问题,有待于进一步研究与解决。
Meanwhile, there are many problems in mulberry gene transformation, such as the difficult to establishing regeneration system, high reliability on gene type, low transformation efficiency.
同时,桑树转基因也存在着再生体系建立困难,基因型依赖性强,转化效率不高等问题。
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