The effects of different chain extenders, amount of extenders, molecular weights of soft segments on the hydrolysis stability of polyurethane are studied and parameters Q, W are introduced.
研究和讨论了不同扩链剂、扩链剂的量以及软段分子量对聚酯型聚氨酯弹性体水解稳定性的影响，并引入了参数Q、W。
The mission of the W-Q-C is to conduct research that evaluates physical, chemical, and microbial processes that affect the quality of surface and subsurface waters utilized for potable supplies.
亚利桑那州大学的水质量中心德任务是研究和评估影响和污染水质量的污染物质。
It's not far from here, I believe. W: Why not ask someone where it is? Q: What does the woman mean?
女士说：为什么不问问人那个地方在哪儿呢？女士的意思是建议男士去寻求帮助。
Chen K. , Yang C. -W. , Wang Q. -G 2008. Applied principles and cautions of locking compression plate.
陈凯，杨长伟，王秋根。锁定加压接骨板的应用原则及注意事项。
Chen K. , Yang C. -W. , Wang Q. -G 2008. Applied principles and cautions of locking compression plate.
陈凯，杨长伟，王秋根。锁定加压接骨板的应用原则及注意事项。
应用推荐