horizontal pendulum

基本解釋

When the pivot of the pendulum starts moving along a horizontal circumference, the bob starts tracing a circle which can have a smaller radius, under certain conditions.
當(dāng)擺的，懸掛點(diǎn)在水平面上作圓周運(yùn)動(dòng)的時(shí)候，在某些情況下重物也可開(kāi)始做圓周運(yùn)動(dòng)，并且半徑更小。
Since 1976, by using the non—damping horizontal pendulum tiltmeter at the range of 1.7"—5" period. we have recorded one wave anomaly signal before a series of strong earthquakes respectively.
六年來(lái)，我們用無(wú)阻尼水平擺地傾儀，在1.7秒—5秒的周期范圍內(nèi)，在一系列的強(qiáng)震發(fā)生前，分別記錄到了一種明顯的波動(dòng)異常。
Tilt meter is one kind of basic instrument of earth tide and the earthquake research, which includes the horizontal pendulum tilt meter, the water tube tilt meter and the vertical pendulum tilt meter.
傾斜儀是一種研究固體潮和地震的基本儀器，主要有水平擺傾斜儀、水管傾斜儀、垂直擺傾斜儀。