遮光弧 的英文怎麼說

中文拼音 [zhēguāng]
遮光弧 英文
obscured sector
  • : 動詞1. (使不顯露) cover; hide from view; screen 2. (攔住) block; obstruct; impede 3. (掩蓋) conceal
  • : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
  • : 名詞1. [數學] (圓周的任意一段) arc2. (古代指弓) bow
  1. Health and safety in welding and allied processes - transparent welding curtains, strips and screens for arc welding processes

    焊接和類似工藝的衛生和安全.電焊工藝用透明焊接屏板,屏帶和
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