Precise hydraulic control allows fast, efficient and safe pulling.
精密液压控制实现快速、有效与安全的拉拔操作。
And the appropriate control position of shift gear and the fifth wheel can ensure safe and efficient control.
变档和第五轮控制位置恰当，确保安全及高效控制。
Network management refers to the operation of computer networks to monitor and control the situation so that it can be efficient, reliable, safe and economical delivery of services.
网络管理是指对计算机网络的运行状况进行监测和控制，使其能够有效、可靠、安全、经济地提供服务。
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