对无水酒精恒沸精馏工艺中恒沸精馏塔进行模拟计算。
Analog calculation of az eo tropic rectification tower in the process of anhydrous alcohol was done.
“现在咖啡价格涨得这么高，有些农民很担忧”，李中恒说。
"Some farmers are worried that coffee prices have risen so high now," said Li.
本文对四电极系统中恒电位器、恒电流器、阻抗测量系统和计算机控制的测量系统的电路原理作了介绍。
The principles of the electronic circuits of pontentiostat, galvanostat, impedance measuring system and the computer-controlled measuring system arc introduced.
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