方坯优质非合金钢、特殊质量非合金钢和合金钢不得有深度大于()的裂纹,不得有深度或高度大于()的划痕、压痕、擦伤、气孔、皱纹、凸块、凹坑、横向振痕。
参考答案:1mm;2mm
If you know ______it was that wrote A Tale of Tow Cities ,raise your hand .
A whom B which C who D that
前卸式装载机结构简单、工作可靠、视野好,适合于各种作业场地。