自行的,中典在线英汉词典提供self-propelling的在线翻译。

self-propelling dredger → 自航式挖泥船；自航挖泥船
self-propelling tripper → 自动推进式倾料器
self-propelling crane → 自进起重机
self-propelling launcher → 自行式发射装置
Self propelling suction dredger → 自航吸式挖泥船
self-propelling landing gear → 自行推进式起落架
self propelling dredge → 自航式挖泥船
non-self propelling ship → 非自航式船
Self propelling bucket dredger → 自航联斗式挖泥船

【Adjective】

1. containing within itself the means of propulsion or movement;
"a self-propelled vehicle"
2. moved forward by its own force or momentum;
"a self-propelled egotist"
"the arms program is now self-propelled"