Proper maintenance is the key to keeping vehicles, equipment, and other materials in serviceable condition.
妥善保养的关键是保持车辆，设备，和其他材料的使用的状况。
The Chief Officer must control the loading computer and its software and maintain the equipment in serviceable condition at all times.
大副必须管理装载电脑和软件，使它们一直工况良好。
We take pride in presenting only pre-owned units that are highly serviceable machines with low hours and in perfect mechanical condition.
我们只需要在提出前国有单位是小时，在低机械状况非常完美的维修机器的骄傲。
We take pride in presenting only pre-owned units that are highly serviceable machines with low hours and in perfect mechanical condition.
我们只需要在提出前国有单位是小时，在低机械状况非常完美的维修机器的骄傲。
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