使热

Based on the analysis on the causes of frequent leak of liquid sulphur trioxide pump, some improvement was taken for its mechanical sealing construction.

分析液体三氧化硫泵屡遭泄漏的原因并对泵的机械密封进行改进，同时根据液体三氧化硫易气化和固化从而不利于泵密封的特性，加强工艺管理，特别是在开停车和泵的切换操作过程中，通过适当的伴热、空气吹扫和蒸汽加热，保证三氧化硫始终处于液态，使泵具有良好的机械密封性能。

The thesis are divided into two parts. In the first part, we used 2,4,6-trichloro-1,3,5-triazine as the precursor to react with sodium which have been achieved by decomposing sodium hydrate at 623 K. At a low reaction temperature of 623 K, carbon nitride nanosphere、porous carbon nitride material and byproduct sodium chloride, would be produced.

本研究将分成两部份，第一部分是在低温下(623 K)将氢化钠粉末热裂解，生成表面积较大的熔融态金属钠，使气态的氰尿醯氯通入与熔融态金属钠在623 K反应，生成奈米氮化碳球、奈米孔洞性氮化碳材料及副产物氯化钠。

With increasing of sodium carbonate or alum, peak viscosity, final viscosity, setback and resuscitation value decreased significantly, but breakdown increased. The hot paste stability declined, gel property and retrogradation decreased.

随着碱面和明矾浓度的增加，淀粉糊的峰值黏度、最终黏度、消减值、回生值显着降低，崩解值显着升高，淀粉糊的热稳定性降低，凝胶性和凝沉性减弱；而葡萄糖和食盐的加入使淀粉的消减值、回生值和最终黏度升高，增强了淀粉糊的凝胶性和凝沉性。

The slide plate on which the film slides is maintained at temperature by heat exchangers mounted underneath.

在滑板上，薄膜的滑动中会有一个下挂式的换热器使其保持一个恒定的温度。

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明：(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺，所生产的Φ140mm和Φ125mm的大规格棒材，其低倍组织和机械性能均符合标准要求，该工艺是可行的；(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置，可以使加工变形渗透到铸坯的中心，这一点是实现小压缩比热连轧生产工艺的关键；(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用，但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区，为保证最终轧材良好的表面质量创造了有利的条件；(4)小压缩比热连轧生产与铸坯质量控制，热送过程控制以及轧后冷却控制密不可分。

Then the self-learn algorithm of deviation of gap zero is adopted for overcome the influence of the small variation caused by roll wear, roll expansion and mechanical clearance on gauge calculation.

根据中厚板的轧制特点，建立了比较完善的轧件出口厚度的软测量方法，它考虑了辊系弹性变形的影响，并引入辊缝零点漂移自学习算法，修正了轧辊磨损、热膨胀和机械间隙变化带来的影响，使轧件出口厚度的软测量模型更加完善。

According service sequence, set salad , soup , hot dish , dessert , don ' t mix it.（ warm the chafing dish , Don ' t let hot food cold ）.

按照色拉，汤，热菜，甜品的顺序进行摆放，不要混淆（对布菲炉预加热，不要使菜变冷）。

The company is under the jurisdiction of 843 state-run factories of Industry Corporation of weapons (the Qin chuan of the North of Xi'an now ), have cooperated with unit experts and technical staff such as Zhejiang University , Tsing-Hua University , Xi'an Communications University ,etc. for many years, in absorb , digest Company and AG reaction of Company , BBC of Germany , heat power at the technological foundation, develop , help integrated circuit control and digital control circuit brilliant floodgate in charge of the power of intermediate frequency, apply various smelting , being completely hot , quenching metal to , return bend and reaction heat field of brazing, make reaction heating technology of our company in in a leading position competence at home.

公司隶属于兵器工业总公司国营843厂（现为西安北方秦川有限公司），多年来同浙江大学、清华大学、西安交通大学等单位的专家及技术人员合作，在吸收消化德国BBC公司与AG公司的感应加热电源技术基础上，研制成全集成电路控制及数字控制线路晶闸管中频电源，应用于各种金属的熔炼、透热、淬火、弯管及感应加热钎焊领域，使我公司的感应加热技术在国内处于领先水平。

Its thermal resistance and moisture-vapor resistance drop considerably in relation to the cotton fabrics of same specifications.

整理后棉织物的热阻和湿阻相对于同规格的棉织物都有所下降，水或汗液从整理面导向织物另一侧时，能快速扩散、蒸发，使织物内层保持相对干爽。

Based on the design and fabrication principles for the high power laser reflector, an active cooling mirror was adopted to improve the beam quality by reducing the mirror thermal distortion which can control the mirror distortion less than 0.1 μm.

根据高功率激光反射镜的设计和制作原则，对反射镜的材料性能进行了分析，采用主动水冷铜镜来减小镜面热畸变使镜面变形控制在0.1 μm以内。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。