查询词典 temperature difference

In mesothermal area where accumulated temperature is 2400～2850℃, the range of increasing production is the biggest, income increase is approximately 1700～2000y/hm2, which is the major region to popularize the technique. The range of increasing production is bigger in north of Heilongjiang Province where accumulated temperature is under 2200℃, it is comparatively suitable for popularizing the technique. Most areas of Liaoning Province where accumulated temperature is over 3000℃, the effect of production increase is not noticeable, and the technique is unsuitable.

在日平均气温≥10℃积温2400～2850℃的中温地带，即吉林省东部、黑龙江省东部和中北部，地膜增产增收幅度最大，增收额达1700～2000元/hm2左右，是主要推广区域；积温低于2200℃的黑龙江省北部地区增产幅度较大，也比较适合推广地膜覆盖；积温高于3000℃的辽宁省大部，增产增收很不明显，不宜推广该项技术。

Lithium metaborate (LiBO2) is studied by high temperature Raman spectroscopy from room temperature up to 1673 K, and spectra drawing in different temperature are got.

本文对偏硼酸锂(LiBO2)从室温到1673K进行了Raman光谱测试，得到了其在不同温度下的Raman谱图。

To assess the thermal contribution from oxidation reaction, the standard formation enthalpes of all reactants and products were used to calculate the oxidation enthalpies. It could be found that all oxidation reactions were exothermic. And oxidation played a more important role during the toluene trinitration at high temperature, because the reaction temperature of toluene trinitration is the higher than mononitration and dinitration, and the temperature coefficient of oxidation is higher than that of trinitration too.

为了考察不同阶段氧化副反应对反应放热的贡献，用反应物和产物的标准生成焓推得氧化反应的理论反应热，计算结果表明，各段硝化的氧化副反应均为放热反应，其中三段硝化反应由于反应温度最高，氧化反应的温度系数比硝化反应高，故氧化副反应对三段硝化影响最大。

The intensity and way of the cold high atmospheric pressure center,Ф568 (the latitude at the nodical point of the 5680 geopotential meter line with the 120°E line in the 500hPa high altitude) and Ф850(the latitude at the nodical point of the 0℃ temperature lute with the 120°E line in the 850hPa high altitude) were closely related to the minimum temperature. The equation of short-term forecast of low temperature weather for Fuzhou, Xiamen and Shaowu was established by stepwise regression analysis. The detemperature rate was estimated by cloud cover, wind velocity, humidity (N20, F20, U20) at 20:00 o'clock.

通过对历史资料分析，利用逐步回归分析方法分别建立了福州、厦门和邵武三个探空站最低气温t的短期预报方程，再利用各地当晚20时的云量、风速、湿度(N20、F20、U20)值估算当晚的降温幅度、进一步对最低气温t进行短时临近预报，然后结合各地果树主栽品种及其抗低温冻害指标、及时发布低温冻害预警预告，构成了福建省冬季果树冻害低温预报预警模式。

According to the regression equations of initial crystallization temperature, the solubility of alumina and density at the temperature of 20 ℃ above its ICT of (2.23～3.0)NaF.AlF3-(0～5%)LiF-(0～15%)CaF2 system,the ICT isograms within the range of 910～950℃ and the density isograms at nonequal temperature within the range of 2.04～2.20g/cm3 under the 6%, 8%, 10%solubility of alumina were first obtained respectively.

基于(2.23～3.0)NaF.AlF3-(0～5%)LiF-(0～15%)CaF2系熔体初晶温度、变温氧化铝溶解能力和变温密度的研究，首次得到了氧化铝溶解能力为6%，8%和10%时温度范围在910～950℃的等溶初晶温度和密度在2.04～2.20g/cm3之间的等溶变温密度。

The result is that temperature distributing is along thickness direction and nonlinear, temperature stress distributing is symmetry about lengthways axis of the wall, and the temperature stress in the corner of the windows and osculant part between the wall and the beam or the pillar is bigger than the other part.

结果显示混凝土砌块整体建筑的温度是沿墙体厚度方向分布的；温度应力的分布是关于墙体纵向对称轴对称的，在洞口端角处以及圈梁、构造柱与墙体的接触处温度应力相对较大。

The results show that, Au-19.25Ag-12.80Ge brazing alloy is better, its melting temperature range is 446.76494.40 ℃, and the temperature interval between the solidus and the liquidus is 47.64 ℃. When the brazing temperature is in the range of 510550 ℃, the alloy has a good spreadability and wettability with Ni. Interface structure observation reveals that there is one continuous intermetallic layer between the brazing alloy and the base metal Ni when welding. X-ray energy spectrum analysis results show that the intermetallic layer is Ge3Ni5, and because of its brittleness, the overthick intermetallic layer will decrease the shear strength of the welding joint, therefore, the welding technology should be controlled so as to gain an ideal welding interface structure.

研究结果表明：Au-19.25Ag-12.80Ge合金的性能较好，其熔化温度范围为446.76~494.40 ℃，结晶温度区间为47.64 ℃；焊接温度在510~550 ℃范围内时，Au-19.25Ag-12.80Ge钎料合金与Ni基体具有良好的铺展性和润湿性，焊接时钎料合金与Ni基体之间形成了一条连续的金属间化合物层，能谱分析表明该金属间化合物层为Ge3Ni5，由于该化合物较脆，过厚的金属间化合物层使焊接接头的剪切强度下降，故应适当控制焊接工艺以获得理想的焊接界面组织。

But the grain growth, grain semiconduction and grain boundary insulation were influenced by many factors, such as the type and contents of dopants, sintering temperature and so on. Therefore, in this thesis the effect of the restore sintering temperature, the oxygenize temperature, the donor and acceptor dopant on the dielectric and varistor properties of devices were studied. With SEM, the microstructure of SrTiO3-based double function ceramic was analyzed.

而晶粒生长、晶粒半导化和晶界绝缘化受到多种因素的影响，诸如杂质的种类和含量、烧成温度等，因此本论文研究了还原烧成温度、中温氧化温度、施主和受主掺杂等对SrTiO_3基陶瓷的压敏和介电性能的影响，并借助于SEM分析对SrTiO_3基双功能陶瓷的微观结构进行了分析。

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

The same procedure was carried out 14 days later. Results The temperature of inferior segment of esophagus was significantly increased at 60min. The temperature of physic liquor was significant higher than that of perfusion. The temperature of perfusion was becoming significantly increased at 5min (P.05). The WBC, PLT, ALT, AST, Cr and CO2CP of preoperative and postoperative had no significant changes. Only lightly peritoneum dropsy and infiltrate slight phlegmasia were observed postoperatively and 14 days later. There were no significant differences among groups.

结果 在60min时食道下段温度显著升高，灌注温度明显高于抽取温度，抽取温度5min时开始升高(P.05)；各组术前和术后WBC、PLT、ALT、AST、Cr和CO2CP无明显变化，组间比较也无明显差异；术后和术后2wk腹膜均见轻度水肿、少量的炎细胞浸润；吻合口见黏膜层有小溃疡形成，表面有渗出，组间无明显差异。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。