bed material 中文意思是什麼
bed material
解釋
床料-
Technical standard for measurements of bed load and bed material in open channels
河流推移質泥沙及床沙.測驗規程 -
For this reason the distributor for the bed directly above the calcination stage should be made of heat-resistive material.
基此理由，直接位於煅燒段之上的床層分佈板必須用耐熱材料製成。 -
A packed bed of granular material sandwiched by two perforated plates, is a good distributor.
兩塊孔板中間填有一層顆粒物料，是一種很好的分佈板。 -
This paper presents the performance of metal oxide anode material, deployment and configuration of anode ground bed, and makes contrast of grounding resistance and protective potential between metal oxide anode and duriron anode
文章介紹了金屬氧化物陽極材料的性能、陽極地床的布置及結構，並對比了金屬氧化物陽極與高硅鑄鐵陽極的接地電阻和保護電位。 -
As the sampler is dragged along the bed, it collects a sample from the top layer of bed material.
取樣器沿河底拖動，收取表層河床質。 -
Various textiles and leather are used as the bed charge of high - frequency voltage marks so as to produce a softening effect on the material
高頻電壓標主要底料是各種布料或皮料。特點是產品更加柔軟。 -
Then river width increased and the intensity of deep point lowing and bed material coarsening decreased and water level lowed continuously. so the bed form changed toward to u type. the bed regulation is realized through sediment silting in different parts in cross section during silting period and the deformation of bed form changed from broad u type channel to narrow and deep v type channel
研究表明，河道在持續沖刷前期深泓點及水位下降與河床粗化同步發展，河床向v型發展；沖刷後期深泓點下降、河床粗化減弱，河道展寬增大，水位繼續下降，河床向u型發展；在以淤積為主時期的調整，是通過斷面不同部位的淤積來實現的，但都是由u型較大河槽向v型窄深小槽發展。 -
Suspended and bed load transport were simulated with a non - equilibrium method. the source treatments in sediment transport equations, suspended load carrying capacity of the non - uniform material and exchange of size - distribution of the bed material are presented. 5
二維懸沙和底沙運移採用不平衡輸沙模式，分析輸沙方程的源項處理以及非均勻沙分組挾沙能力和床沙級配調整。 -
When erosion ceased, the bed surface was observed to be covered by a thin layer of sticky material.
當沖刷停止時可以觀察到床面上覆蓋著一薄層粘著物質。 -
Bed material samplers, as first developed, may be divided into three types.
最初的河床質取樣器有三種類型。 -
Bed material load
底部物質負荷 -
Liquid flow measurement in open channels. sampling and analysis of gravel - bed material
明渠液體流量的測量.礫石河床材料分析和取樣 -
Basic equation for variation of bed material composition in active layer of alluvial river
沖積河流混合活動層內床沙級配變化的動力學基本方程 -
It has been proved, the bed material load, wash load and total load follow the same rule of carrying capacity
證實了床沙質、沖瀉質與全沙具有統一的挾沙能力。 -
Measurement of liquid flow in open channels - sediment transport - sampling and analysis of gravel bed material
明渠流量測量.第10部分:沉積物夾帶.第10e節:礫石河床材料取樣和分析 -
The effect of lateral boundary condition, the river regime and the bed material on lateral erosion are analyzed
結果表明：水庫下游均會有河岸侵蝕發生，但初期一般以下切為主，後期以展寬為主。 -
With gelatin liquor as adhesive and wheat meal as granulation material, the effects on spray granule ' s strength of fluidizing gas velocity, bed temperature, nozzle air pressure and adhesive concentration were studied experimentally in a batch conical fluidized bed spray particle generator
本文在一間歇錐形流化床噴霧造粒器中，以食用小麥澱粉為原料，以明膠的水溶液為粘結劑，實驗研究了流化氣速、床層溫度、噴嘴霧化空氣壓力、粘結劑濃度對噴霧造粒顆粒強度的影響。 -
In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。 -
The equations for the total carrying capacity and the size distribution of carrying capacity and effective bed material have been presented
進而論述不平衡輸沙時總挾沙能力、挾沙能力級配及有效床沙級配的方程。 -
The analyzed results are as follows : the late 1960 ' s cutoff of riverbends increased both the runoff amount and the sediment transport amount of the lower reach of jingjiang river, while the sediment deposition decreased in the lkngting lake area ; after the mid 1980 ' s, both the middle reach of yangtze river main stem and the dongting lake occurred a trend of decreasing annual sediment transport as a result of decreasing sediment releasing from the upper reach of yangtze river ; and in the recent 3 years ( 2003 - 2006 ), the three gorges reservoir first impoundment additionally reduced the sediment concentration in the middle reach of yangtze river flow with a long time, so a distance would be quite long for suspended sediment recovery, but the distance for bed - material load of suspended sediment recovery would be quite short
分析結果表明： 20世紀60年代下荊江裁彎后，三口（松滋口、太平口、藕池口）分流分沙減少，下荊江徑流量和輸沙量相應增加，洞庭湖泥沙淤積減少； 80年代中期以後，長江中游幹流及洞庭湖出口的年輸沙量呈減少趨勢，城陵磯至武漢河段河床由淤積轉為趨向沖淤平衡；三峽工程初期蓄水運用后，長江中游含沙量沿程恢復距離較長，但床沙質部分恢復距離相對較短。
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