Little difference of surface sediment grain size was showed between spring tide and neap tide, and the difference of mean diameter was about 9.7%.

表層沉積物大小潮變化較小国内自拍视频在线播放A，兩次采樣平均差別為9.7％；沉積物年際變化隨大通流量和輸沙量的變化而變化亚洲激情图片小说视频区。

The result shows:(1) the value of R in situ is higher than 0.8, which is lower than that in lab;(2) the averaged value of relative error in spring tide is higher than that of in neap tide and the value is less than 15%.(3) the particle size is the main factor that influences the precision of OBS, while the biology, the color of particle and water, the air bubble in water have some effect on it.

主要結(jié)果有：(1)現(xiàn)場OBS標(biāo)定R值比室內(nèi)標(biāo)定偏低人人舔人人操人人干，但也在0.8以上；(2)大潮平均相對誤差值變化比小潮大97超碰就免费，在懸沙濃度低于1.5kg/立方公尺條件下欧美性，大小潮懸沙濃度平均相對誤差都在15%以下；(3)懸沙粒徑大小是影響OBS觀測精度的主要因素亚洲一级黄色视频一二区，生物国产一本大道香蕉综合视频在线、泥沙顏色、水色和水中氣泡等因素也對觀測結(jié)果產(chǎn)生一定影響欧美多毛XXXXX性喷潮6。

In Jintang Channel, the resuspension flux decreases from spring tide to neap tide; resuspension is caused by strong current speeds, with dispersion also playing an important role in suspended sediment transport and vertical distribution.

根據(jù)鴨綠江河口地區(qū)的懸沙輸運機制分析免费性爱一级，平均流作用、斯托克斯漂移效應(yīng)以及水深與懸沙濃度的潮變化引起的懸沙輸送是本區(qū)最主要的懸沙輸送機制成年免费视频黄网站在线观看不卡。

The spectrum analysis was applied to analyze the fluctu- ation of flocs diameter during the spring tide and the neap tide.

分析表明亚洲九九久久中文字幕，長江口徐六涇處細(xì)顆粒泥沙絮凝體粒徑存在著明顯的變化周期：大潮表層存在7.86h，3.93h和2.95h的變化周期国产精品系列一区二区三区；小潮表層存在8.38h和3.14h的變化周期国产操a在线观看；大潮底層存在3.33h和1.19h的變化周期。

It is shown from the study results that (1) SSC has obvious neap-spring and seasonal variations with periods being 14.7 days and 368 days, respectively, on an average, SSC during the spring tide was 2.96 times as much as that during the neap tide, and SSC in winter was twice as much as that in summer;(2) correlation coefficient between daily SSC and tidal range on the same day in a mean neap-spring period of 15 days was 0.86, and correlation coefficients between tidal range and daily SSC with one day and two day lag were 0.99 and 0.93, respectively, which indicates that the effect of tidal range variation on SSC has a one day or two day hysteresis;(3) the monthly mean SSC was negatively correlated with the monthly mean water discharge at the Changjiang River Datong station, especially well with the water discharge with a lag of 19 days.

懸沙濃度具有顯著的大美国a级黄片、小潮和季節(jié)性變化激情专区，變化周期分別為14.7 d和368 d，平均而言看欧美性爱视频123区，大潮為小潮的2.96倍欧美性爱一级视频在线，冬季為夏季的2倍；2）平均大美女黄频视频久久、小潮半月周期中日懸沙濃度與同日潮差之間的相關(guān)系數(shù)為0.86亚洲人妻网页，與前1日潮差之間的相關(guān)系數(shù)為0.99，與前2日潮差之間的相關(guān)系數(shù)為0.93国产精品大乳在线观看，反映潮差變化對懸沙濃度的影響有1~2d的滯后效應(yīng)√天堂中文www官网av；3）月均懸沙濃度與長江大通站的月均流量呈顯著負(fù)相關(guān)，尤其與流量滯后19d的相關(guān)性最好免费日韩A级片。

The temporal change in floes size of fine suspended sediments was measured in Xuliujin of the Changjiang Estuary in June of 2003, by using an in situ laser diffraction particle sizer, the laser in situ scattering and transmissomerty-100(LISST-100). The spectrum analysis was applied to analyze the fluctuation of floes diameter during the spring tide and the neap tide.

2003年6月利用現(xiàn)場激光粒度儀(LISST-100)在不擾動的情況下亚洲日本一区二区三区，獲取了長江口徐六涇處懸浮細(xì)顆粒泥沙絮凝體的現(xiàn)場粒徑系列資料，應(yīng)用譜分析方法研究了絮凝體粒徑在大小潮欧美熟妇性XXXX交20p、表底層的變化規(guī)律www.干干干.cao。

The observation showes that average VC, D,Δp and ω at the surface water during spring tide are 98.0μl/L, 39.8μm, 1173 kg/m^3 and 1.14 mm/s, whereas those during neap tide are 70.8 μl/L, 64.4μm, 919 kg/m^3 and 2.32 mm/s, respectively.

觀測結(jié)果顯示亚洲福利精品一区，徐六涇大、小潮表層絮凝體體積濃度人人干人人操人人上、粒徑亚洲xx视频、有效密度和靜水沉速的平均值分別為98.0μl/L、39.8μm欧美一区爽爽午夜福利视频、1173kg/平方公尺日韩无码抽插黄片、1.14mm/s和70.8μl/L、64.4μm免费深夜福利网站入口、919kg/平方公尺欧美色频电影一区二区，2.32mm/s。

Results show that floes' VC and D at the surface water were closely related to current velocity; and the peaks of VC lag those of the current velocity. The lag variation during ebb and flood tides is 10-30min and 30-50 min, respectively. Current velocity at 50 cm/s is a turning point of D vs. vertical average current velocity, before the point, Dm increases with current velocity, and decreases after the point. Similarly, VC at 75μl/L becomes a critical point in the surface water, below the point, D increases with VC, and above the point, D stabilizes.Δp is D dependent, larger floes have much lower Δp than smaller floes. Both D and Δp of floes affect ω. In the surface water during spring tide and neap tide, a power exponent relationship exists between Δp and D, and ω and D.

研究表明：①長江口徐六涇表層絮凝體體積濃度主要受水流流速影響天天插天天日天天狠，再懸浮現(xiàn)象明顯国产无码三级片网站，體積濃度過程線滯后流速過程線，落潮期間滯后10-30min日韩插逼视频免费看，漲潮則滯后30-50min色哟哟国产精品网站在线观看；②小于一定流速時絮凝體平均粒徑隨流速增大而增大，大于一定流速時絮凝體平均粒徑則隨流速增大而減小天天日狠狠插，徐六涇夫a片无码在线观看网址、小潮表層絮凝體在50cm/s的垂線平均流速時出現(xiàn)平均粒徑與垂線平均流速關(guān)系的轉(zhuǎn)折；③徐六注大一区二区精品视频在线观看、小潮表層絮凝體平均粒徑在體積濃度75μl/L時出現(xiàn)平均粒徑與體積濃度關(guān)系的轉(zhuǎn)折亚洲中文字幕性爱视频，體積濃度小于75μl/L時粒徑隨體積濃度增加而增大，超過75μl/L時粒徑隨體積濃度的增加變化不明顯先锋生活资源；④絮凝體有效密度由粒徑大小控制看免费老太婆一级毛片，粒徑大，有效密度小特级毛片无码无遮挡免费播放，反之亦然欧美一级特黄A片免费看是日本牲，粒徑和有效密度共同決定絮凝體靜水沉速，有效密度和沉速與平均粒徑之間均存在良好的冪指數(shù)關(guān)系亚洲国产精品九九九九婷婷。

In the astronomy aspect, in 1672 Newton has formulated the reflecting telescope; He also explained not only the tide phenomenon, points out the tide the size the same lunar month related, moreover also has the relations with sun's attraction; Moreover, Newton extrapolated theoretically Earth is not a spheroid, but is the two-pole is slightly flat, the equator slightly drum, and explained the year old bad phenomenon from this and so on.

在天文學(xué)方面黄色视频搞得啊啊啊叫，1672年牛頓創(chuàng)制了反射望遠(yuǎn)鏡；他還解釋了潮汐的現(xiàn)象性色av免费精品观看，指出潮汐的大小不但同朔望月有關(guān)俄国av在线播放，而且與太陽的引力也有關(guān)系；另外在线观看免费huangse网站，牛頓從理論上推測出地球不是球體狠狠干大黄片，而是兩極稍扁、赤道略鼓久久久一本精品99久久精品88，并由此說明了歲差現(xiàn)象等桃色阁。

And after the nadir of the winter solstice the new sun secretly climbs towards the eastern horizon while the tide ebbs further and further out to final emptiness, whereupon Sol's nascent progression is suddenly announced at the vernal equinox, when he appears so resplendently above the distant waves and enters the upper vessel of day, which heralds the turn of tide, the reversal of regression to forward flow.

在冬至點之后久久亚洲一级无码毛片，新日隱秘的上升至東方的地平線，潮汐一步步降落至最低處在线日韩片精品免费观看，直至初生的太陽最終到達(dá)春分點久久久久久九九99精品，在遙遠(yuǎn)的浪潮之上開始閃耀，進(jìn)入一日的上半部分WWW,色色色色色色色,。這也預(yù)示了潮汐重新上漲，與之前的退潮相反開始順流上漲活動能看黄的网站在线一区。