两根导爆索搭接时，重迭长度不得小10cm。
植物种子的种皮来源于雌蕊的什么部位？（） 子房壁。 子房壁和花的其他部分。 珠被。 胚乳。
两根钢轨接头处应适当增大轨枕间距，以利连接钢轨作业。
If the vessel does not arrive by the canceling date，and the Charterer（）expenses，these expenses can be claimed by him from the Shipowner where they are in the reasonable contemplation of the parties. occurs。 incurs。 discus。 recur。
留矿采矿法采空区靠暂留矿石支撑。
A thermostatic expansion valve is properly controlling evaporator superheatAdjusting this valve to lower the superheat will result in a/an （）.
