step soldering

例句：

1. 1.The technician carefully followed the step soldering process to ensure a perfect fit.
   技术人员小心遵循了焊接步骤，以确保完美对接。
2. 2. During the assembly process, it's important to follow the step soldering instructions precisely to avoid any misalignment.
   在装配过程中，严格遵循焊接步骤指导至关重要，以避免任何对齐错误。
3. 3.The engineer was instructed to perform the step soldering task before starting the assembly line.
   工程师被指示在开始装配线之前完成焊接任务。