一段话-8? 2.the vendor shall determine the degree of preheating and heat input required,if any,other than as dictated by the code to prevent cold cracking ,excessive hardness in the heat affected zone and excessive distortion. 厂商需控制出预热温度和所需的热输入量,如果可以的话,不要按照规范去做,为了防止冷裂纹,热影响区过硬,过度变形. 不按规范不太可能吧。 other than不是不要的意思,这句是不是说:厂商除了按照规范指示,还应根据需要确定预热温度和热输入量?查看更多