《煤矿矿井机电设备完好标准》规定:刮板输送机刮板弯曲变形数不超过总数的()。
参考答案:0.03
连词成句。
1. meet / you / too / to / nice (.)
2. my / last / Brown / name / is (. )
3. phone / is / number / your / what (?)
4. what / name / his / first / is (?)
卷筒绳槽磨损()时允许重新车绳槽。