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日期:2024-04-21
The online version of Vacuum at ScienceDirect.com, the world's leading platform
for high quality peer-reviewed full-text journals....
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日期:2024-04-19
2014年1月7日 ... 歐瑞康萊寶真空提供一系列真空設備及零組件. 產品廣泛應用於工業生產, 分析流程
及學術研究. 我們提供最適化的真空解決方案和客製設備, 最完善 ......
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本公司從事真空事業已有數十年之經驗,備有完善的]備器具如:氦氣測漏檢漏儀,若
有先進歡迎來函批評指教,在此由衷感謝。 - We produce Vacuum Metallizing ......
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日期:2024-04-22
Vacuum is space that is devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure.[1] Physicists often discuss ideal tes...
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日期:2024-04-19
A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is collected by either a dustbag or a cyclone for later disposal. Vacuum clea...
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Manufacturer of vacuum cleaners, air purifiers, carpet steemers, and cleaning products....
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日期:2024-04-21
Looking for the Best vacuum cleaner? Consumer Reports has honest Ratings and Reviews on vacuum cleaners from the unbiased experts you can trust. ... Canister vacuum cleaners (39) Nearly all canisters do a fine job of cleaning bare floors and on stairs, bu...