weld thermal cycle

例句：

1. 1. The process of welding involves a thermal cycle that heats the metal to be joined together.
   焊接过程涉及一个热循环，将待连接的金属加热。
2. 2.During the welding thermal cycle, the molten metal is forced into the gap between the two pieces being joined.
   在焊接热循环期间，熔化的金属被强制进入待连接的两块材料之间的间隙。
3. 3. The welding thermal cycle can be monitored using specialized equipment to ensure the proper temperature and pressure aremaintained during the process.
   可以使用专门的设备来监控焊接热循环，以确保在过程中保持适当的温度和压力。