This paper holds that the grain safety dependence on domestic production is limited in view of the scare water and land resources and the high cost of grain safety in China.
基于我国土地和水资源状况和我国农业投入成本和效益分析，我国未来粮食的自我保证能力有限。
In China coal industry, coal mine gas accident is currently the biggest disaster, which has become a major constraining factor in production of coal mine safety.
在我国煤炭行业中，瓦斯事故是当前煤矿生产的最大灾害，目前已成为制约煤矿安全生产的主要因素。
In the light of the current situation of safety in production, great attention should be paid to the utilization and maintenance of the special equipments in China.
针对我国目前安全生产形势，对特种设备使用与维修应予以特别重视。
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