Volcanic tremor is due to the oscillation of magmatic gas or due to the craterwall downfall . 火山地震由火山气体振荡或火山口内壁的崩塌引起。
The dutch-roll oscillation may from a piloting standpoint be termed a nuisance factor . 从驾驶的观点看来，荷兰滚振荡被认为是一个有害的因素。
Volcanic tremor is due to the oscillation of magmatic gas or due to the crater-wall downfall . 火山地震由火山气体振荡或火山口内壁的崩塌引起。
These instabilities manifest themselves in irregular combustion and in pressure oscillations . 这种不稳定现象证明其本身存在不规则燃烧和压力振荡。
The daily and yearly temperature oscillations die away at depths less than 1m and 30m respectively . 温度日变化波及的深度小于1米，而温度年变化影响的深度约30米。
This firmly establishes the nature of the oscillations as low acoustic eigenmodes of the subphotospheric layers . 这就确凿地证实了振荡的本质是次光球层的低频声波本征模式。
Galloping oscillations are usually violent and must be damped structurally, which is a near impossibility . 疾振通常是强烈的，必须从结构上进行阻尼，但实际上几乎不可能做到。
One obtain a description of the vibrational modes in terms of self-consistent oscillations of the nuclear density and potential . 借助核密度和势的自洽振荡我们便得到振动模式的描述。
This problem is to find a curve along which a pendulum takes the same time to make a complete oscillation . 这个问题是求一条曲线，使得一个摆沿着它作一次完全的振动，都取相等的时间。
As the injection current is increased above the threshold value (10.7-24), the laser oscillation intensity builds up . 当注入电流增加到由式（107-24）表示的阈值以上时，激光振荡强度就会增长。
