着重分析了高锰酸钾生产中所用原锰酸钾粉碎机的严重弊端,并提出了具体的改进方法。
The corrupt practice of the original grinder was analyzed and an improvable way has been suggested.
而当前中学历史教学模式却存在着严重弊端,削弱了高中历史学科在素质教育中应有的地位和作用。
But there are serious drawbacks in the historical teaching mode of the middle school at present. They have weaken the due position and function in the quality-oriented education of history.
最终,这些计划都失败了,它们有一个严重的弊端,这便是它们彻底的阻碍了劳动力的流动性。
And as it turned out, a lot of those plans failed catastrophically. Defined-benefit plans have a huge downside: they drastically discourage labor mobility.
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