同时，由于主缆为不可更换构件，因此主缆的寿命直接影响悬索桥的使用年限。
Meanwhile, as the main cable can not be replaced, the life of main cable is to affect the bridge service life directly.
目前不少飞机已超过了原来的使用设计寿命，这些飞机上损伤的构件往往需要更换。
Nowadays many aircraft are operating longer than originally intended. The damaged components of these aircraft need to be replaced.
凡弯曲、变形的杆件应先调直，损坏的构件应先修复，方能入库存放，否则应更换。
Whoever bending deformation, the rods shall first straightening, repair damaged components should first, can store incoming, otherwise should be replaced.
其优点是更换锯片时不用另备工具，构件减少，拆卸方便。
The utility model has the advantages that when the saw blade is replaced, a tool is unnecessary, members are less, and disassembly is convenient.
两部分壳体的相对旋转通过复位构件和定位销来复位锁芯，并且允许锁芯处于记忆模式，用以在不需要有效钥匙的情况下更换钥匙。
Relative rotation of the two-part housing resets the lock cylinder via the reset member and detent pin, and allows the lock cylinder to be placed in a learn mode for rekeying without a valid key.
以钢材为原材料的传统锚杆容易锈蚀，当用作地下工程的结构构件，因其更换困难会对结构的安全性和耐久性带来严峻的挑战。
The traditional steel bolt is easy to get rust, especially in corrosive environment, which will affect the safety and durability of structures.
本灯具采用国际先进的LED光源，非专业人员请不要随意拆卸灯具结构件或更换灯泡。
5 this lamp USES the international advanced LED light source, the non specialized personnel please do not remove the light fixture structure or change the light bulb.
本灯具采用国际先进的LED光源，非专业人员请不要随意拆卸灯具结构件或更换灯泡。
5 this lamp USES the international advanced LED light source, the non specialized personnel please do not remove the light fixture structure or change the light bulb.
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