Intelligent mining is the key to high-quality development in the coal industry.
There are two ways to extend a business. Take inventory of what you are good at and extend out from your skills. Or determine what your customers need and work backwards, even if it requires learning new skills.
可持续性不是一种选择;它是农业未来的必要条件。
传记是我们最接近时间旅行的方式。