An unfavorable condition or circumstance.
不利条件。不利环境
Something that places one in an unfavorable condition or circumstance.
不利的情况,不便的事处于不利条件或环境的事物
Several Methods to Tunnel Locking Under Unfavorable Geological Condition
不良地质条件下隧洞施工锁口的几种方法
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