降温的

The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.

合成方法包括：将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中，升温至48-52℃，于真空度0.02～0.05MPa反应4.5小时，反应完毕降温，用10％氢氧化钠溶液调pH＝11.0-11.4，抽滤，滤液降温至0～2℃，结晶12小时，离心甩滤，用纯化水漂洗滤饼，得雷尼替丁碱湿品；将雷尼替丁碱溶于乙醇中与盐酸反应，制备得到盐酸雷尼替丁，产品符合欧洲药典标准。

Three preliminary conclusions could be approached as follows:(1) SST changes were distinctively characteristic of stepwise fluctuations. A warming trend during the last deglaciation was punctuated by a slightly cooling event which corresponded to the Younger Dryas. The Holocene episode could be divided into three phases of warming, continuously high temperature and cooling.(2) Two remarkable cooling records were documented around 4 kaBP and 1.5 kaBP after the megathermal of the Holocene.(3) Comparison between time series of MD05-2904 diatom R SST index and stalagmite δ^18O results from Dongge Cave, Guizhou Province suggested that changes in the East Asian Monsoon climate is synchronous with variations in the SST in the northern SCS since the last deglaciation and they might have a close correlation with each other

结果表明：(1)南海北部15 kaBP以来表层海水温度呈现明显的阶段性波动特点，即末次冰消期气候转暖过程中，12.9~11.5 kaBP前后温度略有下降，与新仙女木事件对应，全新世南海北部气候依次经历了升温期、高温期和降温期3个变化阶段；(2)全新世大暖期鼎盛期结束后，南海北部海水温度阶段下降，两次明显降温分别发生于4 kaBP前后和1.5 kaBP前后；(3) MD05-2904孔硅藻R值时间序列曲线与董哥洞D4石笋δ^18O曲线对比表明，南海北部表层海水温度变化与末次冰消期以来东亚季风强度变化关系较为密切。

Main Products: Fan + drencher = negative pressure cooling system, curtain-style ventilation cooling system, no matter how hot your plant: 32 or 45 degrees Celsius, or a lot of dust, smell a lot, ventilation bad, very hot.

主打产品：风机+水帘=负压降温系统，水帘式抽风降温系统，无论你的厂房有多热：32或45度以上，或灰尘很多，异味很多，通风不良，非常闷热。

Main Products: Fan + drencher = negative pressure cooling, ventilation cooling system drencher is, no matter how hot your plant : 32 or 45 degrees Celsius, or a lot of dust, smell a lot of poor ventilation, very hot.

主打产品：风机+水帘=负压降温，水帘是抽风降温系统，无论你的厂房有多热：32或45度以上，或灰尘很多，异味很多，通风不良，非常闷热。

Flagship product:+ drencher = suction fan cooling system drencher-ventilation cooling system, no matter how you plant heat: 32 or 45 degrees above, or a lot of dust, odour many, ventilation bad, very hot.

主打产品：风机+水帘=负压降温系统，水帘式抽风降温系统，无论你的厂房有多热：32或45度以上，或灰尘很多，异味很多，通风不良，非常闷热。

Year 2009 Sunshine NE-16 is capable of cooling down 20L of sauce with tap water. 100 degree will instantly be reduced to 35 degree, with only 12 minutes (10 minutes if ice-cube is added). The operating cost per pail is around US$0.036 and it can preserve the taste of the food.

2009年晨光NE-16可将20公升的酱汁以自来水降温冷却；100℃热度瞬间降温至35℃，只需12分钟(搭配冰块可降至10℃)每桶操作成本约0.3元。

It has been found out that the cooling rate has great influence on thixotropy in the experiments, and the higher the cooling rate, the greater the yield stress and equilibrium stress.

实验还发现原油降温速率对其触变性有着重要的影响，降温速率越大，屈服应力和平衡应力越高。

In order to explore main causes and dynamic mechanisms, the latest data of past sequences of solar radiation and volcanic dust are adopted in this paper to simulate the climate change during the Little Ice Age.

主要结论是：在小冰期典型强迫条件下，欧亚大陆年平均温度普遍降低，且具有明显的区域差异，高纬度降温幅度大于低纬度，冬季降温幅度大于夏季。

Occurrence and development of winter-time natural convection cooling effect in the fractured-rock embankment of Qinghai-Tibet highway were investigated using the governing equations based on air-flow function for natural convection in porous media with variable permeability.

通过变渗透率多孔介质流函数控制方程，分析了青藏公路碎石路堤冬季自然对流降温效应的发生和演化过程。结果表明：公路碎石路堤冬季自然对流降温效应从边坡区域最先开始形成，并随着冬季路面温度下降而逐渐向路堤中间区域发展。

The molybdenum delay composition was prepared by two methods -heteronuclear crystalline by decreased the liquid temperature or on common, and the mechanism of heteronuclear crystalline was discussed.

内容如下：本文选择了钼系延期药作为研究对象。采用手工混制和降温析出两种方法制备了钼系延期药，并从理论上阐述了降温析出异核结晶的原理。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。