Application of the cis - trans test defines the genetic unit of function, the cistron.顺? 反 测验可以用来确定遗传的功能单位――顺反子.Weak indications of this link could be found with comparable cis - compounds.在相应的顺 式 化合物中能够发现这个键的微弱反映.The pr...
喂，多尔夫，可见着你了。Hello, Dolph. Glad I caught you.刚多尔夫抢过一件斗蓬并把它包裹起来.Gandalf grabs a cloak and throws it over the palant í r.皮平辗转反侧,难以入睡, 于是他爬起来, 走向刚多尔夫.Pippin is unable to sleep, and gets up, walking toward Gandalf....
滚齿刀具无需筛板, 粉碎颗粒度均匀,粉尘含量极少.Rotary cutters need no screen, but produce consistent grain size , low powder contain.采用旋流板塔替代原系统的筛板塔.The sieve - plate tower was substituted by spiral flow inducing tray tower.简要介绍了筛板塔在工程中的应用.A ...