And the propulsion method whether steam or diesel, you'll leave to us, I suppose?
至于动力方式是采用“蒸气式”抑或“柴油式”，我想贵公司将交由我方全权处理吧？
A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
翼剖面；机翼；翼面一个部件或平面，如机翼、螺旋桨叶、方向舵等，其形状或方位控制稳定性、方向、抬升、冲击或驱动
This aircraft works by jet propulsion.
这架飞机是喷气推进的。
