英语：下面有错误吗we found some tack welds of main girder stiffener was unqualified,in the tack weld have the existence of cracks、 holes and other defects.The quality of tack weld should be like formal weld.Tack weld thickness should not l

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英语：下面有错误吗we found some tack welds of main girder stiffener was unqualified,in the tack weld have the existence of cracks、 holes and other defects.The quality of tack weld should be like formal weld.Tack weld thickness should not l
英语：下面有错误吗
we found some tack welds of main girder stiffener was unqualified,in the tack weld have the existence of cracks、 holes and other defects.The quality of tack weld should be like formal weld.Tack weld thickness should not less than 3 mm,length should be not less than 40 mm,spacing should be 300 mm to 600 mm.

英语：下面有错误吗we found some tack welds of main girder stiffener was unqualified,in the tack weld have the existence of cracks、 holes and other defects.The quality of tack weld should be like formal weld.Tack weld thickness should not l
we found some tack welds of main girder stiffener unqualified.
There are cracks,holes and other defects in the tack weld.
The quality of tack weld should be like formal weld.And the thickness should be not less than 3 mm,length not less than 40 mm,spacing to be 300 mm to 600 mm.

应该没错吧

把 not less than 改成 no less than

这句话的意思应该是：我们发现一些焊接主要大梁的方针呆板是不合适的。在焊接方针里有断裂，孔眼，和其他缺陷存在。焊接方针的质量必须符合焊接形态。焊接方针的厚度不能少于三毫米，长度不能少于四十毫米，宽度在三百到六百之间。weld 是不可数名词，不加s ....

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这句话的意思应该是：我们发现一些焊接主要大梁的方针呆板是不合适的。在焊接方针里有断裂，孔眼，和其他缺陷存在。焊接方针的质量必须符合焊接形态。焊接方针的厚度不能少于三毫米，长度不能少于四十毫米，宽度在三百到六百之间。weld 是不可数名词，不加s .

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