结实的螺丝和液压系统可以确保它在水上行驶。

According to screws and the hydraulic system this object could move on the water.

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全液压动力制动系统动态特性直接关系到车辆的行驶安全性能。

The dynamic characteristics of fully hydraulic power braking system are directly related to the safe travel performances of vehicles.

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研究了全液压推土机液压行驶驱动系统的关键技术参数——滑转率、效率、牵引比和比功率；

The key parameters of bulldozers' traveling hydraulic system, the slip ratio, the efficiency of the hydraulic system, power-to-weight ratio and force-to weight ratio, are studied.

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