查询词典 potential difference

In this paper, in accordance with the mixed method, a measuring system, which consisted of a hydrothermograph with magnetic force agitator, a potential difference meter and a digit thermoammeter etc., were used in the determination of heat capacity of short paddy grain growing in the south China, with a special attention to the influence of moisture content upon the heat capacity of rough rice.

该研究根据混合测定法原理，用磁力搅拌式水卡计、电位计以及数字温度计等，组成一套测定装置，对我国南方产短粒型稻谷的热容进行测定，着重研究了稻谷的含水率对热容的影响。

］ The expiration properties and the optimal activation time of mechanically activated pyrite was deduced by measuring the maximal potential difference of the galvanic cell in the same electrolyte with the activated pyrite and the unactivated pyrite as the electrode material respectively.

摘 要］通过比较由活化和未活化黄铁矿在相同种类、相同浓度的电解质溶液中构成原电池的最大电势差，确定了活化矿的失效性和最佳活化时间。

The electric potential difference UAB between points A and B in an electric field is equal in strength to the work WAB done on a positive unit charge moved form A and B.

电场中AB两点间的电势差等于把单位正电荷从A点移到B点电场力所做的功。

Barrages make use of the potential energy in the difference in height between high and low tides.

虽然部分&老话题&仍然在雅思考试中重复出现，但是新话题的不断推出是雅思考试必然的选择。

The biggest differenced between them is that they have different thinking method and mode. And just because of this difference, they give company different long term potential.

两者最主要的区别在于创新的思路和模式不同，但正是由于这种不同，它们对企业的发展会产生完全不同的结果。

Between these two parts is inserted an insulating transfo- rmer which transmits the control paise and isolates the high potential difference between them.

控制线路主要包含一次脉冲发生器和二次脉冲装置二部分，在这二部分之间有绝缘变压器，负责传递脉冲电压并隔离高电位。

A little time and effort in sprucing up the front door can make a big difference in attracting potential buyers....

一点心思在震灾前门可以相去吸引潜在买主

The results show that, under each drip irrigation treatment before the tasselling stage of spring maize, the fluctuation of average soil water content and soil matric potential at different soil depthes are comparative low under high frequency drip irrigation treatment, and the HDI can hold stable soil water content. The drip irrigation can obviously delay the effect of air temperature on the soil temperature, which was influenced by irrigation process, soil water content and crop growth stages. In addition, the irrigation frequency affects the spring maize root distribution in the soil, and the HDI improves the probability of root distribution in upper soil(0~40 cm). The yield difference of spring maize for irrigation frequency treatments is not significant under the typical field irrigation model combined irrigation with precipitation.

试验结果表明：在春玉米抽雄期以前阶段实施的滴灌各处理中，高频滴灌下土壤平均含水率和不同深度处的土壤基质势波动幅度较小，高频滴灌下土壤水分能保持在一个比较稳定的范围；土壤温度受灌水过程、土壤含水率及作物生育阶段的影响较明显，滴灌能显著延迟气温对土壤温度的影响；灌水频率对春玉米根系分布存在一定影响，高频灌溉能显著促进春玉米根系在上层土壤(0～40 cm)中的分布；此外，在这种典型的灌溉和降雨相结合灌溉模式下，不同灌水频率下玉米产量差异不显著。

Methods Charcoal powder propelling test of intestine was used to observe the effects of Na3VO4 on intestinal propulsive motility in mice. The change of constrictive activities of isolated duodenal tracts was determinated after Na3VO4 administration. The electrical potential difference was also measured across the wall of reverted intestinal sacs.

采用碳末推进实验观察经胃给予小鼠原钒酸钠后胃肠推进率的变化，同时应用离体肠管观察原钒酸钠对小鼠十二指肠运动的影响，并同步测量药物对翻转小肠囊的葡萄糖－钠转运电位的影响。

Paired t-test analysis was performed on the thresholds of SVR and PTA at each frequency (0.5, 1, 2 and 4kHz), and analysis of variance was performed on the difference between the pure tone audiometry threshold and the evoked potential threshold among different frequency.

对听力正常的46名志愿者，分别对双耳进行0.125~8kHz频率范围内的PTA阈值及0.5~4kHz频率范围内的SVR反应阈测试，通过配对t检验比较0.5、1，2、4kHz频率范围的SVR反应阈与PTA阈值的差异，并运用方差分析比较不同频率间的SVR反应阈与PTA阈值差值的差异。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。