The environmental parameters are measured at mines mechanical work site with high temperature and humidity, the miners labour load is monitored and the obtained data is processed by computer .

对高温、高湿矿井机采面环境参数进行测定，同时对矿工的劳动负荷进行跟踪监测，并对测得的数据进行计算机处理。

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Mechanisation, from the steam engine onwards, lightened the load of manual labour, creating jobs and wealth.

BBC: Technology