bolt fastening

例句：

1. 1. The car was bolted together with precision.
   这辆车被精确地用螺栓连接起来。
2. 2. The door was riveted shut to prevent leaks.
   为了防止漏水，门被铆接得紧紧的。
3. 3. The roof is held in place by a series of screws and bolts.
   屋顶通过一系列螺丝和螺栓固定住。