Replaced L main wheel in postflight, check OK.
航后更换左主轮,检查正常。
Postflight check found L outboard main wheel exposed threads due punctured.
航后发现左外主轮扎伤见线。
The three main reasons are lack of competitive pressure, a tendency to reinvent the wheel and a focus on technology rather than organisation.
这有三个主要的原因:缺少竞争压力、重复建设及注重科技而非管理。
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