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.Rockwell Automation defines sustainable production as cleaner, safer more energy - efficient operations.罗克韦尔...
Compound surfaces are more difficult and expensive to fabricate.复合的表面在制造上更困难,花费也更大.Small rectangular backup bars were used to fabricate the web - bottom flange connection.在腹板与下翼缘的施焊中使用小矩形挡板.Cables and towers are small an...