Contact links (3) are curved in an inward manner on the centre of the tip jack shaft.

这些接触桥(3)向所述承插筒的中心朝里拱弯。

Three configurations are available - standard belt drive, jack shaft drive or direct drive.

共有三种结构可供选择—标准皮带驱动、传动轴驱动、或直接驱动。

The propeller is to be force fitted to the propeller shaft by using the hydraulic jack which the Builder possess and secured by wet type keyless fitting method.

螺旋桨通过使用船厂提供的液压顶升装置压入螺旋桨轴并采用湿式无键固定法紧固。