drum type cable laying machine 鼓轮式布缆机
sheltered-type cable laying 暗线敷设
egg type breed laying breed 蛋用种
u-type laying pipe u型埋管
Type of Laying 敷设方式
laying with buried type 电缆直埋敷设
laying through conduit type 电缆穿管敷设
Safety of laying type chickens continuously fed low protein and low available phosphorous (AP) and efficiency of phytase supplementation were studied.
对蛋用鸡连续饲喂低蛋白低有效磷饲粮的安全性及添加植酸酶的效果进行了探讨。
In addition the paper also introduces the requirement for control type, distributing line and line laying of emergency lighting as well.
此外，还叙述了应急照明的控制方式和配电线路选用及敷设要求。
Electric cables bridge frames are a kind of new type equipment for laying electric cables.
电缆桥架是一种新型的电缆敷设装置。
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