Y341-114,代号的意义是压缩式无支撑液压封隔器,上提管柱就可解封,适用套管直径为()。 ["Φ114mm","Φ135mm","Φ344mm","Φ341mm"]
能给我国带来严寒、大风、霜冻等灾害性天气是() ["台风","寒潮","干旱","洪涝"]
扣划单位存款的机关限于()。 ["国家安全机关","监察机关","人民法院","海关"]
既在京沪线上又在陇海线上的城市是() ["连云港","南京","石家庄","徐州"]
口头挂失方式包括()。 ["电话","电报","信函","电子邮件"]
平厢人员在放入托板时,必须手心(),确认模具静止时方可入手,粉煤灰砖机,平厢时要确实将模具内的材料填足,以确保质量。