下第三系 Paleogene ; [地质] Paleogene system ; palaeogene system
第三系 tertiary system
三系杂交 triple crossing
三系法 three line method
上第三系 [地质] Neogene system ; [地质] neozoic ; neogene
第三系统 tertiary system ; Third system
新第三系 Neogene system ; Neogene
三斜晶系 [晶体] triclinic system ; Triclinic
第三系列水泥 the-third series cement
Three-line hybrid rice based on cytoplasmic male sterility (CMS) plays an important role in food crop production.
三系杂交稻在我国粮食生产中有着举足轻重的地位。
参考来源 - 水稻雄性不育性恢复基因Rf3的遗传定义及物理图构建Gossypium hirsutum 18R,the male parent of transgenic three lines insect-resistant hybrid cotton Yinmian 2,is an excellent fertility restorer line for cotton cytoplasmic male sterility(CMS). Its agriculture characters are outstanding,on the other hand,its fertility restore rate for cotton CMS is 100%.
18R雄性不育恢复系农艺性状优良,恢复性状稳定,对不育系能够100%恢复,是研究棉花三系互作的重要材料。
参考来源 - 陆地棉雄性不育恢复系18R的BAC文库构建·2,447,543篇论文数据，部分数据来源于NoteExpress
这一发现对于柴达木盆地第三系油气的勘探开发具有重要的实践意义。
This discovery is of important and practical significance for the oil exploration and development in the Qaidam basin.
总之，惠民凹陷第三系火山作用对油气的生成、油气成藏等起到了积极的作用。
In brief, the volcanism plays a positive role in the trap formation and hydrocarbon generation in the Huimin depression.
将研究成果应用于我国最深的第三系软岩巷道支护工程实践，通过现场监测验证了支护方案的合理性。
The results are applied to the deepest soft rock roadway in China. The rationality of the supporting scheme has been validated by field monitoring.
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