冬季

AO mode haves the obvious seasonal variability. From winter to summer, the height of AO modes conversion becomes low, and the pleion in the boreal Pacific moves from the ocean to the East Asian land.

AO模态有明显的季节变化特征，从冬季到夏季，AO模态的转变层高度由高变低，北太平洋地区的正距平中心从海洋移到东亚大陆，从夏季到冬季，AO模态的转变层高度由低变高，东亚大陆上的正距平中心又移回到海洋上空。

A study is undertaken of the climate base state of the northern winter sea level pressure and its climate variability and temporal evolution, indicating that the base state has its high-value region of means quare deviation in the Aleutian low, the northwest part of the Iceland's low and the Siberian high.

研究了近100多年冬季北半球海平面气压场的气候基本态、气候变率的特征及时间演变规律。指出北半球冬季海平面气压基本态的标准差的高值区在北太平洋的阿留申低压区、冰岛低压区的西北部及西伯利亚高压区。

In Chapter 5, through analysis, it shows that the corresponding relation is very well in latitude zone between Asian strong seism in wintertime and the China summer main rainfall belt.

第5章通过对1951～2000年亚洲冬季强震和地热涡资料的分析表明，冬季亚洲强震所在纬度与我国夏季主雨带的纬度有相当好的对应关系。

How to Heat Your Home in the Winter - Choosing a Hot Water Tankless Heater - Winter heating can be expensive.

如何在冬季热你回家-选择热水器热水炉-冬季取暖可贵。

Trombe wall has been invited forty years ago, and lots of researchers involved in studying its diurnal thermal performance in winter. Their terminal object was to improve Trombe wall's thermal performance and popularization by meliorating its structures and materials. But there are little studies about Trombe wall's overheating in summer and overcooling in winter night. In order to popularize the application of Trombe wall, especially use it in the city residential buildings, it must solve the two "over-" problems.

其中，特朗贝式集热蓄热墙作为一种传统的被动式集热部件发展已有40几年的历史，虽然国内外学者针对其冬季白天热性能进行了深入研究，对特朗贝墙体结构形式和使用材料做了很多改良，但特朗贝墙体冬季夜间过冷和夏季白天过热的问题一直没有得到很好的解决。

At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.

经过两年多的实测和计算，根据传热学、流体力学、统计学等学科的基础理论，对大量数据进行整理归类、分析讨论，主要得到如下结论：(1)冬季，含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低，但人体感觉比较舒适，特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用；(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加，通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式；(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制，从而有效地阻挡冬季冷循环的发生；(4)夏季，如没有有效的通风降温措施，被动式太阳房内会产生明显的过热。

Now, as chairman of the Nanshan Ski Village, in the desert hills near Beijing, he presides over the capital's main winter-sports recreation ground.

现在他是位于北京近郊一座荒山上的南山滑雪场的董事长，主管了首都的主要冬季娱乐场所。这个冬季，有

Actual construction shows that this technology can meet the requirements of welding in winter and accumulates a valuable experience.

实际施工表明，该工艺能满足冬季施焊的要求，为冬季施焊积累了宝贵的经验。

According to the heavy metal content ,the quality of the flocculated samples and the water samples after flocculation was evaluated by National Standard. The results showed that the heavy metal pollution was most serious in Spring s sullages , then was in Summer 、 Autumn、 Winter in sequence;the water quality in Lianyungang、 Xiexinggang was best in Summer, then Winter、 Autumn and Spring in sequence, there was little difference of water quality in Ancient Canal、 Hengcaolugang and Hongze Lake .

对絮凝前后泥样和水样中的重金属分别根据国标进行了评价，不同的季节，污染最严重的是春季淤泥，然后依次为夏季、秋季、冬季；连云港、协兴港地区的水质在夏季最好，其次为冬季、秋季、春季；古运河、横草路港、梅梁湾、洪泽湖水质的季节性变化并不大。

Paise's climate condition is fine , every year 1-2 months are summer , 6-7 months are winter, the weather is burning hotter time summer , winter is now and then nice and cool damp.

佩斯的气候条件良好，每年1-2月份为夏季，6-7月份为冬季，夏季时天气较炎热，冬季时凉爽潮湿。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。