護套壁厚 的英文怎麼說

中文拼音 [tàohòu]
護套壁厚 英文
sheath wallthickness
  • : 動詞1. (保護; 保衛) protect; guard; shield 2. (袒護;包庇) be partial to; shield from censure
  • : 名1 (套子) cover; case; sheath 2 (河流或山勢的彎曲處) a bend of a river or a curve in a mount...
  • : 名詞1 (墻) wall (of a house etc ) : 銅墻鐵壁 bastion of iron2 (作用像圍墻的部分) wall of st...
  1. Railway applications - railway rolling stock cables having special fire performance - thin wall - part 4 : multicore and multipair cables standard wall sheathed

    鐵路設施.有專門防火性能的鐵道機車車輛用電纜.薄.第4部分:有標準的多芯和多對對絞線的電纜
  2. Abstract : the paper presented a kind of drilling hole method that adopted direct circulation and percussion drilling, casing and cliff - protection by mud. the method applied in the complex gravel layer which has the trend to emerge cave - in and drop from the drilling wall

    文摘:介紹一種在砂卵石地層層復雜、孔易掉塊、易坍塌的鉆孔的成孔方法? ?正循環回轉與沖擊鉆進、管與泥漿成孔。
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