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Companies offer free transport services, packaging if purchasers bring in others

Coal mining has caused serious air pollution and severely damaged the groundwater system, resulting in a mined-out area of 5,000 square kilometers.

Compared with offline recruitment, online recruitment is more efficient, faster and safer, a source from Cloud Walk, an artificial intelligence enterprise, told the newspaper.

Companies will likely focus on fine-tuning partial automation over the next few years, to overcome software challenges facing self-driving vehicles, it said.

Companies in oil exploration, infrastructure and electronics manufacturing led R&D spending, while investment in emerging industries like computers, semiconductors and biomedicine accounted for a relatively larger proportion of revenue.