对缝 meaning in English

opposite joint

Standard specification for cold - drawn buttweld carbon steel mechanical tubing
冷拉对缝焊碳素钢机械管的标准规范
Standard specification for wrought high - strength low - alloy steel butt - welding fittings
锻制高强度低合金钢对缝焊接配件标准规范
But it is difficult to detect fracture strip by a single subject or method
但利用单一的学科或单一的方法对缝洞进行预测往往是很困难的。
Standard specification for wrought - carbon steel butt - welding piping fittings with improved notch toughness
具有改进的切口韧性的对缝焊锻制碳素钢管配件标准规范
Steel tubes . unalloyed or alloy steel butt welding elliptic caps with quality requirements . dimensions . technical delivery conditions
钢管.有质量要求的非合金或合金钢制对缝焊接椭圆底座.尺寸.交货技术条件

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