他轻轻松开油门杆，轮船开始缓缓前行。He gently opened the throttle, and the ship began to ease forward.伦纳德在温室里悠然自得地给西红柿绑上撑杆。Leonard pottered round the greenhouse, tying up canes for the tomatoes.压下挡杆，直到听到挡挂好。Press the lever until you hear ...
The main controlling factors of reservoir developing are lithology , lithofacies and ancient weathering crust karstification.储层发育的主要控制因素为岩性和岩相、古风化壳岩溶作用.And then studied the origin and lithofacies meaning of siderite.在此基础...