The matching technology research of ultra-deep drilling rig is very important to improve the efficiency of oil and gas development and the overall economy of rig.
超深井钻机配套技术的研究对提高油气田开发的效率，提高钻机的总体经济性等方面都具有极为重大的意义。
The 21st century is the era of rapid development of knowledge-based economy, countries in the world, with its military advances in technology in order to achieve enhancement of overall strength.
21世纪是知识经济迅猛发展的时代，世界各国凭借本国科技的进步从而实现综合军事实力的提升。
The math teaching for higher vocational colleges should be suited to the situation of economy development and try to train adaptable personnel with high quality and overall career ability.
高职数学教学立足于培养具有综合职业能力和素质的应用型人才。
The math teaching for higher vocational colleges should be suited to the situation of economy development and try to train adaptable personnel with high quality and overall career ability.
高职数学教学立足于培养具有综合职业能力和素质的应用型人才。
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