When you need to do heavier lifting, which on a netbook probably means running Microsoft Office, you can switch over to Windows or whatever OS may be running.
当你需要运行较重的任务时，在笔记本上意味着使用微软公司软件，你要切换到Windows或者其他操作系统。
Hydraulic lift cylinder achieves lifting feeding mechanism up and down with limit switch to control the position, and interlocks with the feeding, tableting and sorting.
升降部分由液压升降油缸实现送料机构上升、下降，用限位开关控制位置，并与送料、压片、整粒联锁。
Take several kinds of lifting door structure of explosion-proof electric apparatus switch as example to analyze its strong and weak points and its suitable situation.
文章以隔爆型电器开关的几种提升式开门结构为例，分析其优缺点，以及其各自适用的场合。
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