And it has given the effects of the all factors on the runoff by 1D river networks mathematical model. Due to the natural and artificial influences, the water-sediment transport has greatly changed. It is characterized by marked decrease in runoff and sediment diverted from these outfalls and increase in water-sediment transport of main stream. The key factors causing these changes are aggradation of the three outfalls channels and Jingjiang river cutoff work.

結(jié)果表明在线无码观看黄片，受自然因素和人為因素的影響欧美国产美女性爱在线，荊江－洞庭湖江湖水沙輸移有了較大調(diào)整變化一级片免费播放，主要表現(xiàn)為三口分流分沙大幅度減小免费一级在线视频播放，干流水沙輸移增加；江湖關(guān)系變化的主要因素是三口分流道的淤積萎縮和荊江裁彎国产日韩在线亚洲色视频。

The advantages and disadvantages of using duckbill valve in sea outfalls are discussed in this paper, and the suitable conditions to use duckbill valve in outfall are put forward.

對(duì)排海工程中應(yīng)用鴨嘴閥的利弊進(jìn)行了分析不满18岁进入黄色网站，提出了鴨嘴閥在排海工程中的適用條件。

The results of numerical simulation shows that without considering the influences of wind field, the influx and the positions of infalls and outfalls decide the West Lake"s field structure which would further decide the rule of water"s process and distribution.

各種工況下的流場(chǎng)和濃度場(chǎng)模擬結(jié)果表明：在不考慮風(fēng)場(chǎng)的情況下亚洲av线网站，各進(jìn)出水口的流量和位置決定了西湖的流場(chǎng)結(jié)構(gòu)国产小视频你懂的在线观看百度，而流場(chǎng)結(jié)構(gòu)決定了水體的推移擴(kuò)散規(guī)律。

Consequently, the fundamental approach to optimize the replacement effect is to adjust the positions of infalls and outfalls and influx, which changes the field structure finally.

因此一级特黄AAA大片兔费无码，在引水量不變的前提下欧美午夜视频免费，優(yōu)化西湖水體置換效果的根本途徑就是調(diào)整進(jìn)出口位置和流量国内精品偷拍小视频，以改變流場(chǎng)結(jié)構(gòu)国产午夜精品视频免费不卡。

Many manatees aggregate in the warm-water outfalls at these plants on cold winter days.

許多manatees總計(jì)在溫水排污渠，在這些植物對(duì)寒冷的冬天天欧美日韩在线95页。

The three outfalls are the tie which connects the Yangtze River and Dongting Lake.

荊江三口是聯(lián)系長(zhǎng)江與洞庭湖的紐帶天天操天天狠天天透，其分流分沙的變化反映了江湖水沙的變化。

Environmental emergency is different from general pollution in its substantial outburst momentarily and its irregular outfalls.

突發(fā)性環(huán)境污染事故不同于一般的環(huán)境污染99视频10精品视频在线，它沒(méi)有固定的排放方式及途徑少妇黄片AAA一区二区三区，是瞬時(shí)、大量地排放污染物質(zhì)的惡性污染事故国产日本视频一区二区观看。

When we do the investigation while walking along the river, we may also find some point source pollution, it's easy to identify as the color is very different at the outfalls.

當(dāng)我們沿著河流進(jìn)行調(diào)查采訪中国一级婬片A片AAA免费，我們也許會(huì)發(fā)現(xiàn)一些排污口（從排水口的顏色的特殊可以容易鑒別）。

As industrial chemicals came into common use, they, too, were washed into the sewage system, and out again into the sewage plant outfalls.

隨著工業(yè)化學(xué)物質(zhì)的普遍應(yīng)用欧美一级操b视，他們也被沖進(jìn)下水管道国产在线无码精品麻豆不卡，并再次進(jìn)入污水處理廠排污口。

It was found that nitrogen and phosphorus pollution were serious but other pollutants such as heavy metals pollution were minor in the waters near the outfalls.

長(zhǎng)江口大水域氮国产天天操、磷欧美日韩国产综合一区二区三区、銅、鉛和化學(xué)需氧量濃度均較高草草影院欧美04一区二区三区，水污染嚴(yán)重日韩高清视频在免费线，并有逐年上升趨勢(shì)免费在线观看青春草。