若因螺栓折损而使相关部件破损及托链轮或支重轮磨偏，将大大增加维修费用。
If impairment of the relevant parts bolt breakage and entrusted sprocket or supporting wheels grinding side, will greatly increase the maintenance costs.
采用阴极保护，可大大提高PC CP管耐久性，降低运行管理中的维修费用，增加管道的有效利用率。
By cathodic protection, the durability of PCCP pipe will be greatly increased to abate maintenance cost in operation management and augment effective availability of the pipe.
这种木材的使用给建筑物增加了一个保护盖，减少了维修费用，让它自然老化。
The use of this kind of wood allowed us to spare it from an additional protection cover, minimizing its maintenance and allowing the natural aging process of the material.
应用推荐