查询词典 temperature difference

Based on the results simulated by PRECIS (Providing Regional Climates for Impacts Studies), which is developed in the Hadley Centre for Climate Prediction and Research, changes of surface air temperature and precipitation under SRES B2 scenario in South China during 2071~2100 are analyzed. It is shown that, compared to baseline (1961~1990), surface air temperature in 2071~2100 would increase by 2~4℃, precipitation in summer would increase in the north part to 22°N, while the precipitation in winter would decrease in the whole areas of South China. The climate trend of the surface air temperature would be positive, however the climate trend of the precipitation would be negative, the occurrence frequency of extremely high temperature events and extremely heavy precipitation events would increase.

利用英国Hadley气候预测和研究中心的区域气候模式系统PRECIS，模拟分析基于政府间气候变化专门委员会 2000年发布的《排放情景特别报告》中设计的B2情景下华南区域2071~2100年的温度和降水量的可能变化，结果显示：2071~2100年均地面温度相对于气候基准时段（1961~1990年）上升约2~4℃；华南区域未来夏季降水量在22°N以北区域较气候基准时段增加，而以南区域减少；冬季降水则表现为华南区域较气候基准时段减少。2071~2100年华南区域的温度气候趋势系数为正值，年均降水气候趋势系数为负值。2071~2100年的高温事件和强降水事件的发生频率均比气候基准时段明显增加。

Constant temperature bath was employed to get the curve of forward current and temperature, which will be the basis of forward current feedback and temperature conversions. Self-developed driving circuits were used to control LED to make the relative illumination decays to be less than 5% and the coordinate excursion of Color rendering indix on the CIE chromaticity diagram is lower than 0.1. The development of circuit control of LED projection light with low aberrance of illumination and Color rendering indix, changing with the temperature can be successfully realized.

研究执行首先针对各类LED单体，进行晶粒温度对前馈电流变化之量测，利用恒温槽控制得出完整曲线，并以此作为LED晶粒前馈电流回授与温度换算之依据，利用自行开发脉波驱动线路，进行高瓦特LED单体控制，达成相对照度变化小於 5%，演色性在CIE chromaticity diagram上座标偏移低於0.1，成功实现一随温度变化，照度与演色性变异均低之LED投射灯控制线路开发。

The use of mechanical seals, and do not have to fill, automatic mind, long life, wide parameters (pressure 15-30 kg / cm 2, temperature -50 ℃-450 ℃, to speed 0-500 /, media: conducting oil, steam , Water, air, etc.), is to address run, run, drip, leak, energy conservation, improve the working environment ideal for sealing components conducting oil rotating series of joint: in-house and the spherical shell after fine grinding process, using a spring 30WACr2VA tungsten chromium Vanadium alloy spring steel from refined, and the introduction of Japanese cedar trees machinery will be silver-impregnated graphite high temperature seals from the assembly, with the temperature effects, and life than the original, high-temperature range of 30%.

该产品采用机械密封，不必填料，自动同心，使用寿命长，参数广（压力15-30㎏/㎝2，温度-50℃—450℃，转速0—500转/分，介质：导热油、蒸汽、水、空气等），是解决跑、冒、滴、漏，节约能源，改善工作环境的理想密封部件（导热油系列旋转接头：壳体内部和球面经过精磨加工，弹簧采用30WACr2VA 钨铬钒合金弹簧钢精制而成，并引进日本柏木机械株式会银浸渍石墨高温密封件组装而成，具有耐高温之特效，而且使用寿命较原来中、低温系列高30％。

In conclusion, the results of multilevel model analysis showed that the GERD score of resident in Wuhan was relatively higher and had significant difference with that in Guangzhou, however, that in Shanghai, Beijing and Xi\'an had no significant difference compared with that in Guangzhou. That is to say, the prevalence of GERD in Wuhan was relatively higher compared with the other four survey sites; the residents'health status more worse, the GERD score more higher, and the influence of health status on GERD score was also effected by the region difference between Wuhan and Guangzhou; residents lived in rural region with lower education level, worse spirit status were more likely to suffer from GERD; Moreover, those residents who had family history of GI tumors or other GI diseases, some anamneses (such as dyspepsia, gastritis, rheumatic arthritis), and some diseases (such as irritable bowel syndrome and aerophagia) were also more likely to report GERD. However, no significant association was found between GERD and some other factors in this survey, such as sex, age, etc.

总之，多水平模型分析结果显示，与广州相比，上海、北京和西安居民的GERD总评分没有明显的差异，而武汉居民的GERD总评分则相对较高，即表示武汉的GERD发病率在5个调查城市中相对较高；居民的总体健康状况越差，其GERD总评分越高，且其对GERD总评分的影响受到武汉与广州之间地域差异的影响；农村居民、文化程度越低、精神状况越差者更容易患GERD；另外，那些有胃肠道疾病或肿瘤家族史，既往患有胃炎、消化不良、风湿性关节炎，现患有肠易激综合征、吞气症的人，患GERD的可能性更大，而性别、年龄等因素，本研究未发现其与GERD有显著的关系。

The scattering properties of particles with different shape parameters are simulated respectively in the modes of reflection and refraction. Both in the modes of reflection and refraction, the phase difference of non-spherical particle's PDA signal is the unbiased estimate of the corresponding phase difference of ideal spherical particle, and the standard deviation of angle roughness scale on particle surface impacts little on the distribution of phase difference.

本文通过物理光学的方法分析了非理想球形粒子的散射特性，利用物理光学中的稳相点理论，导出了非理想球形粒子散射光的相位表达形式，分析了非理想球形粒子的形状对PDA信号相位及相位差的影响，建立了非理想球形粒子的尺寸分布与PDA信号相位差分布之间的关系。

To against an afterload of 1.96kPa(200mmH_2O), measure two groups of direct flow and antidromic flow, both begin with the pressure difference of 0mmH_2O, add more 20 mmH_2O every time ,measure three tines at each pressure difference, get the average value at each pressure difference.

测试分为顺向和逆向两组，在克服后负荷压强为1.96kPa(200mmH_2O)情况下，分别从0mmH_2O压力差开始，每隔20mmH_2O递增，测量通过静脉外间接人造瓣膜的生理盐水流量，每个压力差值测量3次，取平均值。

The structure of the execution organizations: Three kinds of differences were presented, including natural difference, functional difference between central and local organizations, and difference in division of decision-making.

一、在执行组织结构方面：呈现机关属性的先天差异、中央与地方的功能差异，以及事权划分的纠葛等三项分殊性。

Two new rules represented in equality for Demyanov difference: the Demyanov difference of summations of two pairs of convex compact complementary sets;the Demyanov difference of a set, which is the convex hull of finite number of convex compact sets, and a convex compact set complementary to these sets,are given.

为此给出了两个关于Demyanov差的新的用等式表述的运算法则：两个彼此互补的凸紧集对的和的Demyanov差，有限个凸紧集的凸包和与这些凸紧集正交互补的凸紧集的Demyanov差。

In chapter 5, we study necessary conditions for difference sets and we obtain the following: we proved that there are no nontrivial difference sets in dihedral group of order 4p〓, where p is a prime, d is a positive integer; we give a necessary condition for Hadamard difference sets in some group of order 4p〓, and completely solve a general case left in Dr.

在第五章中，我们研究了差集存在的必要条件。

This paper is an investigation of the differences between monosyllabic and disyllabic time adverb as a synonymy which display in three aspects: the difference of syllable of the modifying object,the difference of pragmatic rank and the difference of grammatical function.

同义的单音节时间副词和双音节时间副词之间，存在三个方面的差异：修饰对象的音节差异、语用移位的差异以及语法功能的差异。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。