电动关门器 electric door closer
重砣式关门器 weigjht closer
旋转关门器 Rotary door closer
液压开关门器 Hydraulic door openers and closers ; Door openers and closers ; hydraulic door opener
气动开关门器 Pneumatic door openers and closers ; pneumatic door opener
液压关门器 hydraulic door closer
自动关门器 automatic door closer
气动关门器 pneumatic door closer
关门器缓冲闭门 door closer buffer door closing
我曾用水泥填充的轮胎、雨伞和锡箔以及报警器制作了一个自动关门器。
I'd invented an automatic gate closer out of cement-filled tires, a solar cooker that didn't work very well out of an umbrella and tinfoil, baking-pan alarms to entrap my siblings.
我打赌，很多人会一直用机器语言写下去，直到有一天，处理器换成了RISC指令集-就像急着下班的酒吧服务员急着关门一样，端掉这些人的饭碗。
I bet a lot of people continued to write machine language until the processor, like a bartender eager to close up and go home, finally kicked them out by switching to a RISC instruction set.
一个定时器给你足够的时间让你走进小店，然后关门。
A timer keeps the doors open long enough for you to walk into the store.
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