螺紋谷 的英文怎麼說

中文拼音 [luówén]
螺紋谷 英文
groove of thread
  • : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
  • : 名詞(花紋; 紋縷兒) lines; veins; grain
  • : 谷名詞1 (兩山或兩塊高地中間的狹長而有出口的地帶) valley; ravine; gorge 2 (姓氏) a surname 3 ...
  1. Forming taps which produce no burrs since the chamfer is created by not tilting at the root of the tap and by continuously changing the width of the root this enables manufacture of the superfine pointed miniature thread so. 5 1. 25 , hitherto considered impossible

    由於絲錐倒牙部的底沒有傾斜和有持續變化的底寬度,抑制了毛刺和髭須發生的擠壓絲錐,以往不可能製作的微型內用絲錐也能製作。
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