甙

She will go to Paris, as you know, in three days.

她将去巴黎，你知道的，在三天之后。

In order to realize intelligent control for flameproof and intrinsic safe combined vacuum switchgear,A system is developed based on programmable logic controller.

根据矿用隔爆兼本质安全型组合磁力控制站的工作原理，以 PLC为中央控制单元，研制了组合开关的测控系统。