In the water transport process, the sunken wreck accident which causes because of the ships overload transportation sometimes occurs.
在水上运输过程中，因船舶超载运输而导致的沉船事故时有发生。
The concentration front transport distance of and the maximum value of concentration increased with increased time in the process of water supply.
供水入渗过程中，浓度锋运移距离和浓度最大值均随时间的延长而增大；
Mud in the drilling process, the drilling mud or water transport machinery such as washing fluid.
泥浆泵是在钻探过程中，向钻孔输送泥浆或水等冲洗液的机械。
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