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- variation before earthquakes 震前变化
- This paper infers the raising reason of elevation at Tongguan by analyzing the variation before and after the construction of the Sanmenxia reservoir. 摘要本文通过分析三门峡水库运用前后潼关高程的变化，揭示了潼关高程抬升的原因；
- Dogs, for example, are alleged to whine or bark nervously just before earthquakes strike. 例如，据说狗在地震即将发生时，发出哀鸣或紧张不安地吠叫。
- According to popular folklore, many animals are smarter than they appear.Dogs bark before earthquakes;cattle predict rainfall by sitting on the ground. 根据流传的民间故事，许多动物都比它们看起来还聪明：狗会在地震之前叫，牛群坐在地上时就表示要下雨。
- According to testes by many earthquakes, the obvious anomalies of the subsurface fluids, such as water level, radon and mercury are observed before earthquakes. 经过多次地震检验，该井水位、氡、汞等地下流体震前异常反应明显。
- Objective: Used echocardingraphy to assess the left atrial (LA) systolic functional variation before and after physical exercise of seawater bath in patients with essential hypertension (EH). 摘要目的：应用超声心动图技术评价海水浴体疗运动对高血压患者左房收缩功能的康复作用。
- Apparent stress variation before and after two strong earthquakes in Xinjiang 新疆两次强震前后地震视应力变化
- Through the analysis of water quality data for multi-years in stem river and tributary rivers in TGP reservoir area,the water quality variation before and after impoundment of TGP is analyzed. 通过对三峡库区干支流水文断面蓄水前后多年水质资料进行整理分析,分析了蓄水前后库区河流水质变化趋势。
- Animals are also affected particularly before earthquakes snakes have been observed to come out of hibernation rats to flee from their burrows dogs howl and cats jump about unaccountably. 尤其是地震前，动物也受到了影响。蛇结束冬眠，老鼠逃离洞穴，狗狂吠和猫乱跳。
- The picture shows a landslide before earthquake contributed by a web user. 下面的图是地震前网友拍到的一次山体滑坡。
- Anomalous tremors before earthquakes 震前扰动
- abnormal information before earthquakes 震前电磁波异常信息
- As a matter of fact, I've never been there before. 事实上我从未到过那儿。
- We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
- Seismic strengthening existing buildings before earthquake is one of effective ways to mitigate earthquake disaster. 震前对现有建筑的抗震加固，是减轻地震灾害行之有效的方法之一。
- Prices have not shown much variation this year. 今年物价没显出多大变化。
- The vectorgraph drawn by using the minute values of the tiltal data is quite regular and has some anomalies before earthquake. 用该台的地倾斜资料的分钟值描绘矢量图，发现每日的矢量图规律性强，并且在地震前有一定的异常表现。
- Prices are subject to variation. 价格可以变动。
- We have farther discussed short term and imminent abnormality for borehole volume strain observation data before earthquake. 本文仅就部分钻孔体应变资料的地震短临异常作一初步讨论。
- The clerk marked up his daybook before going home. 办事员在回家前记好当天的日记帐。
