煤炭开采的科学技术论文

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Over 1,400 Chinese exhibitors have attended the fair, the second most only after the host country Germany. Huawei, Haier and other Chinese manufacturers have presented their most advanced networking and artificial intelligence technologies to the world in the past days.

Over its five decades of exploration, most of the proven reserves in the Bohai Bay Basin, which has seven oilfields including Bohai and Shengli, have been crude oil rather than gas.

Overall, the US economy is strong. Unemployment is near a 50-year low despite a worldwide economic slowdown and a lower rate of growth in the US. Initial claims for state unemployment benefits fell 10,000 to a seasonally adjusted 203,000 for the week ended Nov 30－the lowest since mid-April, the US Labor Department reported on Thursday. Consumer spending, which represents about two-thirds of the economy, is strong going into the holiday season.

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Over the course of five days with 12 training sessions, the program equipped local graduates with industry-relevant practical knowledge and skills possessed primarily for the development and implementation of Fixed Broadband Backbone (FBB). These trainees also had the opportunity to participate in a soft-skill session which involved the role play of customer management.

Outbound travelers spent nearly 6 billion last year, a year-on-year increase of 5 percent.

Overseas market volatility has a spillover effect on developing countries, through weak market confidence, she said.

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Over the past six weeks, the hospital has received more than 700 novel coronavirus pneumonia child patients, and more than 600 have been cured and released, according to the hospital.

Over the past four months, 22 Russian companies, seven Brazilian companies, five South African companies and six Indian companies have joined Epec, Sinopec said.

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Over the past 18 months, as the US-China trade dispute continued, Utah has taken several government delegations to China to communicate its friendship and promote reciprocal trade opportunities, particularly in energy and agriculture.

Output of non-ferrous metals hit 14.17 million tons, up 2.1 percent year-on-year.