contact welding的用法和樣例：
例句
- Welded rail tunnels used mobile CWR rail contact welding method for China's domestic initiative.
隧道內焊軌采用移動(dòng)式無(wú)縫線(xiàn)路鋼軌接觸焊施工方法，為中國國內首創(chuàng )。 - A second contact pad has a plurality of contacts connected to the other side of the fuse line.
第二接觸焊盤(pán)具有連接到保險絲線(xiàn)的另一側的多個(gè)接點(diǎn)。
