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问题: 机械工程英语

indicates approx. location for spot weld on A surface 3 places. A depression of up to half the metal thickness is permitted on this surface/

解答:

indicates approx. location for spot weld on A surface 3 places. A depression of up to half the metal thickness is permitted on this surface
显示了A表面3处点焊的大致位置。表面凹孔深度不得超过金属厚度的一半。