The small submersible heaters where the cord goes directly in the water work best. Ebo Jaeger heaters are very good. The heater has a temperature dial right on it.
给水体加热时最好选用小型、可安置于水下并可与水直接接触的加热设备，EboJaeger加热器是相当好的，它上面有一个温控旋钮可以控制温度。
The attitude stability of the multi-degree-of-freedom robot is the main research of this thesis, it will be a wide use on surface or under water work and the ship hanging goods.
本文主要研究多自由度机器人末端姿态稳定控制的问题，在水面及水下平台作业、船舶吊放货物等领域将有广泛的应用前景。
That both the structure and material of gravity dams and construction means of earth dams are used in roller compacted concrete dams make them increasingly used in water work.
碾压混凝土坝将混凝土坝结构和材料与土石坝施工方法两者的优越性结合起来，在水利工程中得到愈来愈多的运用。
That both the structure and material of gravity dams and construction means of earth dams are used in roller compacted concrete dams make them increasingly used in water work.
碾压混凝土坝将混凝土坝结构和材料与土石坝施工方法两者的优越性结合起来，在水利工程中得到愈来愈多的运用。
应用推荐