封井器
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rotating well plugging device 液压旋转封井器
well plugging device
堵井装置
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Students will realize substantial benefits from the bundle, which will add a physical keyboard to the device as well as a USB adapter that supports plugging in USB thumb drives as well as peripherals such USB mice.
ENGADGET: Galaxy Tab 2 7.0 Student Edition Bundle officially hits stores tomorrow, yours for $250 until Sept.1st
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