故建立适当的数学模型，然后编写程序对其进行优化，并绘制了相应的变化曲线，来实现连续提升器。
So we need to design a program to improve the function and draw the relevant changing curve to optimize the function of the continuous elevation machine.
采用单一萃取程序对建立的重金属形态连续萃取方法的萃取条件进行优化。
To separate and evaluate heavy metal fractions properly, the proposed sequential extraction method was optimized by single extraction procedure.
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