题目内容

棚腿中心线与顶底板垂线之间的夹角叫迎山角,过山和退山都会降低支架的支撑能力。()

查看答案
更多问题

I’d rather stayed at home when it rains outside.
A B C D
___________

It ’s excited that so many people like that exciting TV program.
A B C D
_____________

掘进机履带销轴最大磨损量不得超过0.5mm。()

锚杆孔深应大于锚杆杆体有效长度30mm。()

答案查题题库