dual - beam

• 焊接

dual - beam的用法和样例：

例句

1. A beam of light produced by a laser can weldmetals.
   激光器发生的光束可以焊接金属。
2. Its comprehensive coverage focuses on electron beam welding of steels and alloys.
   它的广泛报导集中在钢与合金的电子束焊接。