The best adult board games prove that we've moved way beyond dusty classics like Risk and Monopoly. No matter whether you're hunting down party games or an epic team experience that'll test your ...

Voltimum is the central source of product catalogs from leading manufacturers in the electrical industry. Check our new powerful PDF viewer, see all product catalogs at a glance and go faster through ...

在机器与设备的操作中，许多控制是用液压控制机构来进行的。在连续速度控制的场合，液压控制通常比较方便和便宜，当能量转换效率较高的时候，液压控制往往和电动控制中的伺服控制同时使用。这时，就形成了效率和精度较高的电液执行机构。 详细 ...