Open poles at the top or bottom of the distribution box according to the cable or wire direction and the cable tray specification.
根据进出电缆电线的方向及桥架的规格，在配电箱的顶部或底部开孔。 配电箱的所有开孔处须用。
2
The velocity distribution and the reciprocity of the two phases on the high efficient flow-guided sieve tray were analyzed and researched.
文中对高效导向筛板上液体流速分布和气液两相间的相互作用进行了分析和研究。
3
Kangaroo family distribution of stainless steel products factory of stainless steel floor drain, toilet, hand tray, towel rack and other product variety, reasonable prices.