Protecting against excessive input voltages using a pair of diodes to power supply reversibly biased in normal direction.
用一对二级管以反向偏执于正常方向的形式连接至电源端，来保护过高的输入电压。
Covered porches input to provide a smooth transition from the outside to the inside, you can shelter under them from rain, snow or excessive sun.
人们从门廊下通过，将会感受到一种缓和的、从内而外的过渡，你可以在这里躲避雨雪或过多的阳光。
Less than that, because of excessive concentration of mud, water, digest processing demands considerable energy input.
不足的是，由于污泥中水浓度过高，消化处理要求投入相当大的能量。
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