Furthermore, dragline silk is elastic, which many of the man - made fibers are not.而且, 牵引丝具有弹性, 这是许多人造纤维所不具备的.Objective To obtain the whole length gene of dragline.目的为获得蜘蛛拖丝蛋白全基因.Araneus diadematus dragline silks are stu...
他们用步量出这个花园的长度.They paced out the length of the garden.他用步子量出那房间的长度和宽度.He paced out the length and width of the room.他用脚步量出从学校到公共汽车站的距离.He paced the distance off from the school to the bus station....
This makes the production process for extruding the powder mass very complicated.这就使得压伸粉状药料的生产方式变得非常复杂.Introduce the construction and processing technology of extruding container.介绍了挤压筒的结构和加工工艺.Adopt three - layers to - ...