测试焊盘 test pad

测试焊缝 test weld

测试焊接 test weld

试接、试焊 pilot joint

可焊性试验 solderability test ; weldability test

试验焊接 [机] trial weld

焊接试验 welding test ; welding experiments ; [机] weld test ; [机] soldering test

焊接性试验 weldability test ; solderability test ; weld ability test ; weldability

测试用焊点 test pad