To control the ground-water table on irrigated lands is vitally important in arid and semi-arid regions. In order to determine the standard of water table control, considerable attentions were paid to the "critical depth"(or "safe depth") of ground-water table. The salts accumulate in the top soil if the water table is not deeper than this depth. The conditions that the salts accumulate in any layer of the soil owing to the movement of soil moisture are:(1) the supplement of soil moisture from neighboring...

本文分析了地下水補給情況下土壤水分的形態(tài)和不同形態(tài)的水分在土壤中運行和蒸發(fā)的一些特點人干人操人，論証了毛管水聯(lián)系破裂含水率等土壤水分形態(tài)指標(biāo)與土壤水分運動和土壤積鹽狀況的關(guān)系国产精品无码一级视频，探討了次生鹽堿化發(fā)生的地下水臨界條件999国产视频，提出了地下水臨界深度的確定方法在线a片视频。，并且對現(xiàn)有的臨界深度的確定方法進行了討論與比較免费专区-iGAO视频网_为爱搞点激情。

The paper introduces the heating and ventilation system of the 3600mm eight-cylinder paper machine and puts forward the attentions for the operation of the system.

對3600mm八缸紙機的采暖通風(fēng)系統(tǒng)作了闡述，并提出了該紙機通風(fēng)系統(tǒng)的使用注意事項404亚洲免费在线视频。

Attentions have been paid to China and its development among both domestic and foreign academes. As a new topic,"China factor" was firstly raised among the economy research field a few years ago.

由于航運業(yè)與國際經(jīng)濟特別是與國際貿(mào)易的緊密聯(lián)系免费黄色网站多少，中國因素對于航運市場尤其是干散貨市場的影響成為了近年來國際航運業(yè)所關(guān)心的重要課題。

The film editing shall be done in accordance has an altruistic and with my own way and manner （2004/51; Cambridge） Facing the film editing, I have to convince considerably my intuition and inner aesthesia; do not rely on someone else, and trust yourself the inner guidance （2004/5/2） Attentions between teacher and child, mother and child, as well as child and child…children have to grow up under an environment of Love, so as to be healthy and happy, spilling only if his inner mind were full of compassionate and altruistic conception.

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The results of the research are to suggest the relevant departments to improve the bikeway environment by paying more attentions to those differences.

據(jù)此殴美性爱三级片网，建議相關(guān)單位可依據(jù)研究結(jié)果改善自行車道騎乘環(huán)境。

"Taiwan urban / rural landscape renewal project" has come into operation in Taiwan since 2000, and the government builds bikeways to combine cycling with tourism. The project, which makes the recreation activities of the bicycle substituting for the car or the motorcycle, draws the citizens' attentions.

臺灣自2000年以來推動城鎮(zhèn)地貌改造計畫黄色一级无码区，積極進行自行車道之規(guī)劃18禁黄网站禁片免费观看在线，期能結(jié)合自行車與游憩發(fā)展；在在表示騎乘自行車取代汽機車的游憩活動愈來愈受到普遍的重視国产老年妇女BBW视频，此乃是綠色運具節(jié)約能源色黄色免费在线、環(huán)境保護的新方向。

Under the pressure of continuously rising oil price,the chemical industry is trying to find new resources and to develop new processes.Therefore,in recent years close attentions have been paid to making chemicals from biomasses.

面對石油價格不斷上漲的壓力欧美激情欧美激情欧美，化學(xué)工業(yè)必須尋找新的原料來源和開發(fā)新的生產(chǎn)過程www久久网。

Article 37 The passengers of elevators, passenger cableways and large entertainment facilities shall observe the requirements of safe use attentions, and comply with the directions of the relevant staff members.

第三十七條電梯、客運索道在线一区、大型游樂設(shè)施的乘客應(yīng)當(dāng)遵守使用安全注意事項的要求美女销魂国产一级A片，服從有關(guān)工作人員的指揮。

Our purpose of enumerating the facts and exaggerating some statements is not only to draw attentions and explorations from ceramists, but also prove that conceive the bright future of China ceramic art without any doubt as the contemporary ceramic art has gained great strength after twenty years of development.

上述這些問題裸体视频一区二区三区，實際上也是在中國今日陶藝獲得長足發(fā)展的大背景下映襯出來的国产激情综合网，有些并不是很顯現(xiàn)，之所以一一列舉中国免费三级片视频网站，并言過其實91午夜在线视频，不僅是為了引起陶藝人的關(guān)注和探討，更因為中國今日陶藝在20年之后的今天已經(jīng)擁有的力量讓誰都可以想象并不懷疑中國陶藝的美好未來国产一级视频在线观看免费。

Our purpose of enumerating the facts and exaggerating some statements is not only to draw attentions and explorations from ceramists, but also prove that conceive the bright future of China ceramic art without any doubt as the contemporary ceramic art has gained great strength after twenty years of development.

況且有些問題的本身又恰好證明了中國今日陶藝存在的意義和價值无码国产有码精品91。年年歲歲花相似，歲歲年年人不同jjzzz国产。