基本解释n.对抵接头(对接;碰焊)同根派生 buttjoint相关词英汉例句Keywords SAW equipment with mould of T-type buttjoint;welding technique test; 骑座式马鞍型埋弧焊机;工艺试验;buttjoint更多例句词组短语短语double strap buttjoint 双列对接buttjoint更多词组