Some of the main health risks you may face are outlined below, along with information on how to get help and support, and how to take care of yourself to protect your health.
下面的内容概述了海员们在海上的主要健康风险、怎样才能获得帮助和救援、以及如何照顾好自己以便拥有健康的身体。
After joining the WTO, China will face more severe competition, high tech enterprises will be the main support of the new economy.
中国加入WTO以后将面临更加激烈的竞争，高技术企业将是新经济的主要支柱。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
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