The past is always constructed from the present.
The most important skill in mathematics is the ability to ask the right questions.
Coal enterprises must actively adapt to energy structure adjustments and accelerate transformation and upgrading.
采矿技术的创新不是可选的,而是我们对下一代的责任。
The best way to predict the future is to create it.
过去总是紧张的,未来是完美的。