永久性密封 的英文怎麼說

中文拼音 [yǒngjiǔxìngfēng]
永久性密封 英文
sealed-for-life
  • : Ⅰ副詞(永遠; 久遠) perpetually; forever; always Ⅱ名詞(姓氏) a surname
  • : Ⅰ形容詞(時間長) for a long time; long Ⅱ名詞(時間的長短) of a specified duration
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • 永久性 : perpetual; permanency
  • 永久 : permanent; perpetual; everlasting; forever; for good (and all)
  1. The valve seat shall be an elastomeric seal that will permit seating at low - head pressure, and an arrow shall be molded on the valve body for permanent visibility to indicate the intended direction of flow

    閥座應該是彈,它使得閥座處于較低的排出壓力下,箭頭應該清晰可見地模鑄在閥體上,標明計劃的流向。
  2. One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely water tight and impact resistant unit

    電纜的一端連接在閉的水銀開關內,這個完整的總裝形成完全不透水、抗撞擊裝置。
  3. Watts 994hmb fire hydrant backflow preventer meter construction consists of : meter housing, measuring element, permanently sealed register, and reduced pressure backflow preventer in unitized assembly

    美國瓦茨994hmb消防栓防迴流閥儀表結構包括:儀表殼,測量元件,永久性密封記錄器,和在成套總成內的減壓防迴流閥。
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