The vessel to be propelled by a single-acting two stroke supercharged cross head Diesel engine, acting to a fixed pitch propeller .
该船的主机为单作用，二冲程，带涡轮增压器的十字头柴油发动机，并且螺旋桨为定距桨。
2
Because of the stronger adaptability to unknown terrain of a hopping robot than a traditional mobile robot, a hopping mechanism using a fuel gas-actuated single-actingengine is developed.
由于弹跳机器人较传统移动机器人具有较强的未知地形适应性，研制了一种燃气驱动的单动发动机式弹跳机构。
3
This engine resembled present single-acting gas and oil engines.