检查非磁性材料焊接接头表面缺陷的方法有（）。
Yourdonationscan_____poorchildren____foodandachancetostudy.
Turnoverrate
Inordertohelpyoutodevelopbusinessinthisline,wearepreparetoofferyouadiscountof5%.
Weregretthatweareunabletomeetyourrequirementforthetimebeingasordershavebeenfullybooked.
HowtoDealwithaHeavyWorkload