单词:oscillator divider
单词:oscillator divider 相关文章
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Keeping Time With Quartz Most people know that wrist watches commonly contain quartz. In fact, if you wear a watch, chances are its a quartz watch, since most watches is made today use quartz. But, you may not know what quartz has to do with keeping
During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank. 在一个研究实验中,一个海洋生物学家把一条鲨鱼放进一个大的水箱中,然后投放
During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank. 在一个研究实验中,一个海洋生物学家把一条鲨鱼放进一个大的水箱中,然后投放