任何时候配电盘都应有专人操纵.Whenever the distributor all should have appointed man to operate.用途: 一般机械控制箱 、 配电盘 、 机器、电器等电缆固定用.Application: used for machinery control box, distribution plate , machine and electrical, etc.通用电气公司是主要的工业配...
This order may be cited as the Metrication Amendments ( Dutiable Commodities Ordinance ) Order.本命令可引称为《十进制修订 ( 应课税品条例 ) 令》.General Merchandise Sector mainly manages commodities, small gifts small ornamentation.小百货区主要经营各类...
the density of a gas一种气体的密度Mercury has a much greater density than water.水银的密度比水大得多.Astronomers know that Pluto and Triton have nearly the same size, mass, and density.天文学家知道冥王星与海卫一拥有几乎相同的体积、质量与密度。...