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- Aggrading streams heavily charged with bed load may fill their channels nearly to the top of the banks. 帶有大量推移質(zhì)的堆積河流可以把河槽淤高到幾乎與岸頂齊平。
- An estimation method of bed load transport rate based on the grain froude similarity is proposed. 運用沙粒佛汝德相似的原理,提出了推移質(zhì)輸沙率的推算公式。
- Bed load particles move spasmodically, perhaps at long intervals, and are at rest on the stream bed most of the time. 推移質(zhì)顆粒多半作間歇運動(dòng),而大部分時(shí)間則停歇在河床上。
- In the stream with strong bed load movement there is no benthic macroinvertebrate. 河勢散亂且河床運動(dòng)劇烈的支流物種豐度和密度均很低甚至為零，生態(tài)條件差。
- The instantaneous sediment transportof suspended and bed load are computed, and the sediment transport rates are time-averaged over one wave period. 計算了波浪周期內各個(gè)時(shí)刻瞬時(shí)的懸移質(zhì)和推移質(zhì)泥沙輸沙率，并對輸沙率進(jìn)行時(shí)間平均求得時(shí)間平均的輸沙率。
- Based on the study of sediment transport under the actions of tidal currents and wind waves, a mathematical model of suspended load and bed load for Yangtze Estuary is developed. 摘要通過(guò)對長(cháng)江口徑流、潮流和波浪共同作用下的泥沙運動(dòng)規律的研究，開(kāi)發(fā)并建立了長(cháng)江口全沙（懸沙和底沙）數學(xué)模型。
- By the measured data of "9711" Typhoon wave,the process of bed load resuspending under the effect of "9711" Typhoon wave around the channal of Yangkou Harbour is calculated. 利用“9711”臺風(fēng)浪實(shí)測資料,計算了洋口港航道所在海區在“9711”臺風(fēng)浪作用下床沙的懸浮上揚過(guò)程,得出洋口港航道不具備驟淤的可能性。
- In the meanwhile, the result also show that the section configuration and near watercourse characteristic has influenced gravel bed load transport rate. 河床斷面形態(tài)及其相鄰河道特性對輸沙率也有較大的影響。
- The Yalin's bed load formula and Einstein's suspended load carring power formula have been used as a control to obtain sediment transport and sediment delivery ratio on the hillslope in the mountain watershed. 用Yalin推移質(zhì)公式和Eim－stein懸移質(zhì)挾沙能力公式作為控制，求出了坡面徑流的輸沙量和泥沙輸移比。
- The experiment also verified the feasibility of triangular bed load deflecting slope, and provided a new sediment guiding equipment to pressure forebay under the special conditions. 驗證了三角形導沙坡設計的可行性，為解決壓力前池內特殊條件下的輸排沙提供了一種新型導沙裝置。
- Hubbell,D.W.,Stevens,H.H.,Skinner,J.V.,and Beverage,J.P.,1987,Laboratory data on coarse-sediment transport for bed load sampler calibrations : U。S. Geological Survey Water-Supply paper 2299,31 P. 致謝：本課題為中美地表水水文科學(xué)合作協(xié)議附件四全沙輸移項目課題。作者對美國拉斯維拉斯火山觀(guān)測站和中國長(cháng)江委水文局有關(guān)人員為各項試驗給予的幫助表示衷心感謝!
- The river channel change, the bed load and bed material armoring, and the water level lowering after the operation of the Gezhouba project are analyzed based on the topographic and hydrologic data. 根據實(shí)測地形和水文泥沙資料,分析了葛洲壩樞紐運用后宜昌河段的河床沖淤變化、推移質(zhì)和床沙的粗化以及枯水位的變化。
- In this paper,firstly,the formula for estimating the bed load transport rate in the bed of sand waves of prototype by model experiment based on the similarity of grain Froude number was inferred. 基于沙粒佛汝德數相似原理,首先推導出利用模型試驗結果估算原型沙波河床上推移質(zhì)輸沙率的推算公式;然后塑造與原型較為一致的床面形態(tài),利用模型試驗對推算公式進(jìn)行了驗證。
- According to many model experiments experiences,different movability characteristics of bed load and suspended load in flow field of vortex sediment funnel are analysed in this paper. 通過(guò)模型試驗和量綱分析,推導了處理推移質(zhì)泥沙和懸移質(zhì)泥沙的排沙漏斗的直徑計算公式;
- The brook warbled over its rocky bed. 小溪潺潺流過(guò)多石的河床。
- Opened the show with an acoustic set. 不用電子樂(lè )器開(kāi)始演出
- The laser analyzer has already been applied widely in many fields, and it brought the better effect on sediment size analysis of suspended sediment and bed load of reservoir and riverbed. 摘要激光粒度儀已經(jīng)在越來(lái)越多的領(lǐng)域得到廣泛的應用，并且在水庫、河道的懸移質(zhì)和推移質(zhì)泥沙顆粒粒度測量分析上發(fā)揮了很好的作用；
- She rushed off to work leaving her bed unmade. 她匆忙去上班連床都沒(méi)鋪好。
- A mosquito netting completely surrounds our bed. 一頂蚊帳把我們的床完全圍住了。
- It was hard work getting the children off to bed. 哄孩子們去睡可不是容易的事。
