Therefore, the moist potential vorticity analysis associated with the mesoscale convective system was researched in the paper, so as to reveal the moist potential characteristics of mesoscale convective system in typhoon circulation. The results showed that, during the generation stage, convective instability characterized by MPV1 was a favorable condition for forming MCS, while the vorticity which was caused by the slantwise isentropic surface and the vertical shear of the horizontal wind characterized by MPV2 was an inspiring mechanism. The specific process was that, the atmosphere exhibited the feature of strong convective instability at the low level of convection areas and the southeast areas, which included plenty of erratic energy. The slantwise ascended the stream transfer the erratic energy to northwest, where the stratification stability was small. As decreased, the cyclonic vorticity increased. On the other hand, the vorticity caused by the slantwise isentropic surface and the vertical shear of the horizontal wind inspired the release of convective instability and as a result that the MCS formed. During the development stage, the cyclonic vorticity increased quickly with the persistent decreasing of . Meanwhile, the inclination of isentropic linewas bigger than the absolute momentum line at middle level, which exhibited the feature of conditional symmetric instability , then the conditional symmetric instability was forced to release by the vorticity resulted from the slantwise isentropic surface and the vertical shear of horizontal wind, and the MCS developed.

結(jié)果表明，在對流形成階段riAV网，MPV1即對流不穩(wěn)定為MCS的形成提供背景不穩(wěn)定條件久久久国产精品午夜一区，由MPV2即濕等熵面的傾斜和水平風(fēng)的垂直切變而引起的渦旋發(fā)展作為強(qiáng)迫機(jī)制：MCS形成的區(qū)域及東南區(qū)域中低層是強(qiáng)對流不穩(wěn)定層，蘊(yùn)含豐富的不穩(wěn)定能量欧美日韩专区国产一区，傾斜上升運(yùn)動(dòng)把對流不穩(wěn)定區(qū)具有強(qiáng)不穩(wěn)定能量的暖濕空氣向西北中層的中性層結(jié)區(qū)輸送五月月色开心婷婷久久合，由于的減小，氣旋性渦度增強(qiáng)美女扒开腿让我爽视频软件网站，有利于形成對流国产亚洲一二三，另一方面，由于濕等熵面傾斜和低空急流加強(qiáng)而引起的渦旋發(fā)展作為一種強(qiáng)迫機(jī)制激發(fā)對流不穩(wěn)定能量得到釋放久久亚洲精品无码aⅴ大香，從而形成對流日韩激情无码一级毛片多人；在對流系統(tǒng)地發(fā)展階段，由于低層的對流不穩(wěn)定性進(jìn)一步減弱国产激情无码专区，進(jìn)一步減小aa专区，氣旋性渦度進(jìn)一步增強(qiáng)，有利于MCS的增強(qiáng)国产三级片免费无码手机版，中層等θe 線的傾斜度比絕對動(dòng)量M 等值線的傾斜度大在线观看国产爆草视频免费，對應(yīng)有條件對稱不穩(wěn)定區(qū)域，滿足條件對稱不穩(wěn)定條件国产办公室秘书，在濕等熵面傾斜和臺(tái)風(fēng)低空急流作用下引起的渦旋發(fā)展強(qiáng)迫對稱不穩(wěn)定能量釋放免费自拍黄色网站，從而使得對流得以維持和加強(qiáng)欧美欧美在线视频观看。

Based on the Changxing Agricultural Geologic Environment Survey in Zhejiang Province, the paper marks the abnormal plot of some elements in the soil of surface layer in Meishan Basin, such as Cd、Hg真实普通话对白嫖妓视频、AsjiZZjiZZ日本护士办公室、Ni、Pb欧美性爱插插插、S九九久久久网站视频、Br、Cljizzjizzzz中国、F, and lays emphasis on the spatial distribution of the abnormalism, and also evaluates the environmental quality of soil and shallow groundwater preliminarily. The results show that enormous coal gangue was stacked with open-air as a result of coal mining of Meishan Basin.

文章以長興縣農(nóng)業(yè)地質(zhì)環(huán)境調(diào)查結(jié)果為依據(jù)免费丝袜恋脚自慰网站，結(jié)合區(qū)域淺層、深層土壤及淺層地下水測試分析數(shù)據(jù)的統(tǒng)計(jì)特征精品一区论坛，圈定了煤山盆地土壤中Cd超碰Cao草棚gao进入、Hg、As亚洲图欧美日韩小说在线、Ni都有什么免费的黄色网站、Pb等重金屬和與采煤有關(guān)的S、Br99级A片、Cl网站自拍偷拍、F等不同元素的地球化學(xué)異常圖，重點(diǎn)分析了異常的空間表現(xiàn)特征在线观看国产mm免费视频，并對土壤欧美爱性真人在线视、淺層地下水環(huán)境質(zhì)量進(jìn)行初步評價(jià)。

As a result, it shows that one/ones is the most frequently used group of substitution proform in English nominal substitution. They can substitute not only the whole noun phrase but also the crucial word in a noun phrase, emphasizing a general reference. Mastering all these usages can help to improve the concise power of expression as well as English comprehension .

重點(diǎn)論述了替代詞one/ones的語義特征乱人伦中文视频在线香蕉，對比研究了替代詞one和指代詞it色WWW永久免费、以及替代詞one/ones與另一組替代詞that/those的用法區(qū)分，研究表明免费作爱视频免费观看，one/ones是英語名詞性替代中最常見的一組替代詞妓女精品视频在线播放，它們既能替代整個(gè)名次詞組又能替代名詞詞組中心詞，強(qiáng)調(diào)泛指意義美女18黄色，掌握它們的各種用法有利于培養(yǎng)言簡意賅的英語表達(dá)能力人人着人人摸人人操、提高英語閱讀理解力。

and as a result：因而

因爲(wèi): because; owing to; on account of | 因而: therefore; as a result; thus; and as a result, | 固然: admittedly; it's true that

In consequence, As a result：結(jié)果

因此: So, Thus, Hence, Therefore, Consequently, For these reasons, | 結(jié)果: In consequence, As a result | 由此可見: It will be seen from it that......

therefore adv. for this or that reason; on that account; as a result of that：因此;所以

at the mercy of without any protection against; helpless b... | therefore adv. for this or that reason; on that account; as a result of that因此;所以 | He was very tired and therefore he fell sound asl...