The automatic waste water treatment system function and specialty are introduced in this paper, and expatiate the HMI and PLC technology's embody application.

本文介绍了电镀污水处理系统的功能和特点，并阐述了人机界面技术和P LC技术在自动污水处理系统中的具体应用。

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These are examples of potentially needless care that not only can waste money and time, but sometimes can harm, says the warning being issued Thursday from medical specialty groups that represent more than 350, 000 doctors.

NPR: Doc Groups Issue List Of Overused Tests, Therapies