Study on evaluation method and standard of ageing and out-of-repair project was conducted in combination with the features of channel projects in lower Yellow River.
结合黄河下游河道工程的特点，对工程老化失修的评价方法和标准进行了研究。
2
The speakers of my old stereo finally gave out and there was no way to repair them.
我那台旧音响的喇叭总算坏了，又没办法修理。
3
A significant number of complex repair jobs carried out by Ace Repairs have to be reworked under the company's warranty.