永磁起重器是起重工具的一种.Permanent Magnet Lifter is a kind of lifting gear.电永磁起重器是当前国际上流行的新型磁力器件.Electropermanent lift magnet is a new type of magnetic force device.可根据客户需要制作其它尺寸的永磁起重器.Dimension can be changed if client requiring....
From Cairo came expressions of regret at the attack.开罗对此次攻击表示遗憾。Cairo has only thirteen square centimetres of green space for each inhabitant.开罗居民的人均绿地面积仅13平方厘米。Cairo is the capital of Egypt.开罗是埃及的首都。...
这种性质通常称为 “ 螺旋性”, 可以用来区分中微子和它的反粒子.This property, often called " helicity,'serves to differentiate the neutrino from its antiparticle.API螺纹啮合后存在的螺旋性间隙是导致螺纹接头泄漏的根本原因.It is the helical clearance area in API connections ...