My test unit also came with an odd little add-on microphone poking out from the bottom, even though it had a built-in mic at the top.
我测试的这台电脑还有一个古怪的外置麦克风，从机器底部伸出来，而其实电脑顶部已经有了一个内置麦克风。
They bang out a song on mic and keyboard routed through a PA. Their bikes are loaded down with kahtein, cash, robes, fans and umbrellas to be donated to Buddhist monks.
人们通过麦克风和键盘弹唱的歌曲从一套扩音设备响亮地传出，他们的车上满载着准备捐献给佛教僧侣的僧衣、钱币、长袍、扇子和雨伞。
This article also points out that the method of the reactor of MIC to debug effectively has an important effect. The inverse sludge has a vital function to foster granular sludge.
文章还介绍了MIC反应器的有效调试对厌氧去除效果的影响和污泥回流对培养颗粒污泥的作用。
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