zh-tw:everplast:machine_parts:vacuum_pump
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| zh-tw:everplast:machine_parts:vacuum_pump [2019/09/16 08:00] – 建立 jonathan_tsai | zh-tw:everplast:machine_parts:vacuum_pump [2019/09/19 10:01] (current) – 移除 emma_hsu | ||
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| - | ====== Vacuum Pump ====== | ||
| - | A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. | ||
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| - | ===== Reference URL ===== | ||
| - | * https:// | ||
zh-tw/everplast/machine_parts/vacuum_pump.1568620819.txt.gz · Last modified: 2019/09/16 08:00 by jonathan_tsai