Towing and pushing tractors 牵引车和推顶车 ; 躼
Tugboats are used to maneuver, primarily by towing or pushing, other vessels in harbors, over the open sea or through rivers and canals.
拖船通常通过拖或推来移动海港、远海、河流或运河中其他的船。
The common practice to change from the pushing operation to towing, or vice versa, is both time - consuming and power - wasting, and it is hard to operate as well.
一般拖轮由顶推作业改为艉拖作业或反之，不仅费时费工，而且操作不便。
This ship is applicable for harbour operation, which can be operated for towing, pushing and fire fighting in coastal navigation area and in port.
本船为适用于港口作业船舶，可在沿海航区和港内进行拖带、顶推、消防救助作业。
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