将用钢缆替换磨损的绳索。Steel cable will be used to replace worn ropes.象牙磨损的速度快于生长的速度。Elephants wear the tusk down faster than they can grow it.磨损的小地毯会使人更容易绊倒。Worn rugs increase the danger of tripping....
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...