Magmeter
直读式频率计(0-500赫)
🗣️ 情景例句
He showed no consideration for his wife.
他从不体贴他的妻子。
I dialed the right number,but nobody answered.
我拨了正确的号码，但是任何人接。
Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
地球周围温暖的大气层和望远镜散出的热量使得我们根本不可能找到比行星更小的物体。