The climatology method is another simple way of producing a forecast.
气候学方法是另一种制作天气预报的简单方法。
The invention has simple process, little pollution in the preparing process and low producing cost.
本发明工艺简单，生产过程污染小，生产成本低。
The preparation method in this experiment of producing active Al_2O_3 is simple and economical.
本实验方法生产活性氧化铝的成本低，简单易行。
The method is simple and the producing efficiency is high.
本发明的制造方法简便，生产效率高。
The method is simple and the producing efficiency is high.
本发明的制造方法简便，生产效率高。
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