soldanella

soldanella的英语例句

1. A number of metals and alloys, how ever , are difficult to silver - solder and require special procedures.

   但是有许多金属和合金是难于银焊的,因此需要采用专门的工艺方法.

2. Joints between reinforcement members can be made satisfactorily with tin solder.

   锡焊能够满意地做成加筋构件之间的接头.

3. Fewer workers are needed to solder circuit boards.

   焊接电路板需要的工人更少了。