查询词典 EV

The elaterid Agriotes fusicollis Miwa has one generation every two years,but sometimes it has one generation per year or generation ev- ery 3—4 years.

细胸金针虫在陕西武功地区为两年一代，也有一年或3—4年完成一代者，此为世代上的多态现象。

The results showed that the maximum UV absorption wavelengths of those 1,3,4-oxadiazole derivatives in dichloromethane were in the range of 268~327 nm, and their maximum photoluminescent wavelengths in dichloromethane and solid film were located at 332~390 nm and 359~439 nm, respectively. The 1,3,4-oxadiao1e derivatives exhibit a first endothermal peak at 120~328℃ in the DSC heating process, and the symmetrical 1,3,4-oxadiazole derivatives display a higher melting temperature. The CV curves of those 1,3,4-oxadiazole derivatives indicate that the reductive potentials of the 1,3,4-oxadiazole derivatives are located at -1.03~0.98 V, and their LUMO(the lowest unoccoupied molecual orbit) energy levels are -3.71~-3.76eV.

结果表明，该类衍生物在二氯甲烷溶液中的最大紫外吸收波长在268~327nm范围，在二氯甲烷溶液和固体膜中的最大荧光发射波长分别在332~390nm和359~439nm范围；DSC分析结果表明，5个噁二唑衍生物的起始吸热峰位于120~328℃之间，其中对称结构的噁二唑衍生物显示了较高的熔融温度；由循环伏安图和相关计算结果表明，5个噁二唑衍生物的还原电位位于-1.03~-0.98V，其相应的最低非占有分子轨道能级在-3.71~-3.76 eV之间。

D laser scan system is important one of r ev erse engineering, it is a compositive system,including numerical control,laser ,CAD/CAM,precise mechanism,computer,image collection and image processing.

三维激光扫描系统是反求工程的重要组成部分，是集数控、激光、CAD/CAM、精密机械、计算机图像采集与处理为一体的集成系统，它主要由运动控制、图像采集、图像处理、三维重构等几大部分组成。

To investigate the pollution levels, occurrence and distribution of estrogens, six estrogens in the surface sediments of Wenyuhe River were analyzed quantitatively by GC/MS following ultrasonicated extraction including diethylstilbestrol, estrone(E1),β-estradiol(E2), 17α-ethynylestradiol(EE2), estriol(E3), and β-estradiol 17-valerate. Six estrogen concentrations ranged from 0.39-36.6ng/g and the mean concentration was 10.2ng/g.

为了调查温榆河沉积物中雌激素物质的污染状况，采用超声萃取、GC/MS法研究了6种常用雌激素（包括己烯雌酚DES、雌酮E1、雌二醇E2、乙炔基雌二醇EE2、雌三醇E3和戊酸雌二醇EV）在北京温榆河上游及干流表层沉积物中的含量水平，并对其分布及来源情况进行了分析。

I'll think of you ev'ry step of the way.

我在路上的每一步都充满了对你的思念

I 'll think of you ev'ry step of the way.

我将会在生命中的每一步想着你

If i got down on my knees i'm being with you,would you ev...

如果我跪下来，和你在一起。你会让我失。

I'm going to tell you ev erything.

但是这是我们的最后一次约会。

And ev'rything I would like to be.

是我想要学习的一切

And ev'rything I would like to be?

是我所想要成为的一切

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。