cyclic variation

Relationship Between Microstructure of Left Ventricle and Cyclic Variation of Myocardial Ultrasonic Backscatter Integration

左心室壁显微结构与心肌背向散射积分周期变化的关系

There is a peak value of coefficient of pressure cyclic variation in combustion process. pressure;

进气过程中也存在压力变动，其压力变动率高于燃烧过程；

The dynamic variations of groundwater level are subject to cyclic variation of precipitations.

当地降水量的多年周期性变化决定了地下水位的多年动态。

Experimental Research on Cyclic Variation of 6190 Natural Gas Engine

6190燃气发动机循环变动试验研究

The Influence of Operation Factors on Gasoline Engine Maximum Combustion Pressure Cyclic Variation

运转因素对汽油机最高燃烧压力循环变动影响的研究

Distribution Law of Peak Pressure Cyclic Variation in Gasoline Engine

汽油机最高爆发压力循环变动的分布规律

The methods of evaluation on pressure cyclic variation in a spark ignition engine are studied in this paper.

分析比较了火花点火发动机循环变动的评价方法，并提出了用各个曲轴转角下的压力变动率曲线表示压力循环变动的方法。

Excess pore water pressure in soft foundation under sea embankment undergoes a cyclic variation due to the change in unit weight of upper accumulation with the tide level.

当潮位的涨落引起上部堆载容重变化时，海堤下软基的超孔隙水压力将随潮位呈周期性变化。