含沙量；沉積物濃度
The water surface level, velocity field and sediment concentration field of gravel sand bed and sand bed reach on Jianjiang river were refined simulated.
細緻地模拟了荊江卵石夾沙河床及沙質河床淺灘河段的水面線、流速場、含沙量濃度場及河床變形。
The basic reason of these abnormal phenomenas is caused by hyper-sediment concentration, severe deposition of the channel and obviously increased the river bed.
發生這些異常現象的根本原因是，本次洪水的含沙量大以及近幾年河道淤積嚴重、河床明顯擡高。
To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up.
為了計算波流共同作用下含沙量沿垂線的分布，建立了沿垂線分布的泥沙擴散系數模型。
In actual surveys, due to many disturbing factors, the signal strength obtained from ADCPs is found to be in nonlinear relationships with suspended sediment concentration.
在實際測驗中，由于多種因素幹擾，ADCP所得到的背散射強度與懸沙濃度之間存在着不定的非線性關系。
Gradation of sand column and sediment concentration of muddy water and water head are remarkably effective factors for the fine grain distribution in sand column.
砂柱的顆粒組成、水含沙量和入滲水頭對滞留分布産生顯著的影響。
In the model, the concept of antecedent sediment concentration is introduced and the method for simulating the back silting under the action of wave is established.
數學模型中引進前期含沙量的概念，得到了潮流挾沙能力公式，給出了波浪作用下浮泥引起航槽回淤的模拟方法。
The secondary flow in river bends has significant effects on flow velocity and sediment concentration distribution in the transverse direction.
摘要彎道環流是影響斷面流速和含沙量分布的重要因素。
The operation design must meet with its operation conditions of the operation level, design inflow discharge, sediment concentration, sediment settlement design standard and the operation time.
運行設計應滿足沉沙池運行水位、設計入池流量、含沙量、泥沙沉降設計标準和運用時間等運用條件。
The result indicates that the discharge per unit width, the sediment concentration, the grain size of sand influences the depth of scour hole.
試驗結果表明：渾水水流的單寬流量大小、含沙量的多少以及含沙粒徑的變化都對沖刷坑深度有一定的影響。
Runoff plots play an important role in soil erosion monitoring, and the measurement of sediment concentration in collecting tanks is a key step.
徑流小區是土壤侵蝕監測的一個重要方法，對其集流桶中含沙量的測定則是侵蝕監測準确與否的關鍵。
The rivers running across large area with emergence of mesozoic and tertiary stratum usually have high sediment concentration and large modulus of erosion.
穿過有大面積中生界和第三系地層出露地區的河流，其含沙量高，侵蝕模數大。
According to the turbid-water model experiments of the auto-desilting gallery, the influences of deflector installation on water consumption rate and sediment concentration are analyzed in this paper.
通過對自排沙廊道進行渾水模型試驗，分析了廊道上部排沙導流裝置參數的變化對排沙耗水率及廊道出口含沙量的影響。
In the course of sedimentation research, the measurement of sediment concentration and its distribution is very important.
在泥沙研究中，含沙量及其沿垂線分布的測量問題非常重要。
With the model test, this paper researches overbank flood sediment concentration and its gradation change rules from Jahe beach to Gao village river section of lower Yellow River.
通過模型試驗，研究了黃河下遊夾河灘到高村斷面河段漫灘洪水含沙量及顆粒級配的沿程變化規律。
The photoelectricity instrument works out the suspended sediment concentration.
由光電測沙儀測出懸浮泥沙濃度；
Under steady salinity, flocculating settling velocity depends on factors such as diameter and type of sediment concentration of suspension, settling distance and temperature of water.
在穩定含鹽靜水中的絮凝沉速取決于泥沙粒徑和類型、含沙濃度、沉距和水溫等因素。
The bankfull discharge and corresponding sediment concentration is estimated through the above method.
其中的有效輸沙流量及其相應含沙量采用本文方法估算。
Compared with measured data, this equation can describe the sediment concentration distribution better both in main flow region and near-bottom region.
與實測資料對比表明，該公式能更好地描述包含主流區與近底流區在内的泥沙含量分布規律。
Temporally, the suspended sediment concentration in the jiaojiang river estuary area show a neap-spring tidal cycle and flood-ebb fluctuations.
椒江河口段的懸沙濃度在時間上呈現明顯的大小潮周期和漲落潮變化。
The sediment concentrations of turbidity maximum zone tends to be higher, but the sediment concentration at sand bar tends to be lower.
最大渾濁帶中心處泥沙濃度趨于增大，但口門攔門沙處泥沙濃度趨于減小。
Based on the principle of sound attenuation to measure the sediment concentration of suspensions, the attenuation value of sound pressure must be detected.
基于聲衰減原理進行水體含沙量測量的方法，需要測量聲壓的衰減值。
Fifthly, based on the consideration of sediment diffusion because of sediment particle interaction, the equation of vertical distribution of sediment concentration is derived.
五是在考慮泥沙顆粒碰撞擴散的基礎上，推導了泥沙濃度沿垂線的分布規律。
The conclusion can benefit the coming research on nutrients release from sediment and suspended sediment concentration (SSC) response to the surface disturbance.
該結論能為計算太湖水體懸浮物濃度和動态内源釋放提供重要的參考依據。
After the peak runoff rate, sediment concentration decreases and variation amplitude reduces.
峰值徑流流量後，含沙量降低，表現為變化幅度小的低含沙量特征。
The amount of adsorbed BPA on unit sediment decreased with increase of sediment concentration;
隨着沉積物濃度的增大，單位沉積物上的BPA吸附量減少；
"沉積物濃度"（sediment concentration）是環境科學、水文學和地質學中的核心參數，指單位體積水體中所含懸浮沉積物的質量。它直接反映水體中泥沙、黏土、有機顆粒等固體物質的含量水平，是評估水質、侵蝕程度及生态系統健康的關鍵指标。
沉積物（Sediment）
指經風化、侵蝕作用産生，并由水流、風力或冰川搬運的礦物顆粒、有機碎屑等固态物質，常見于河流、湖泊及海洋中。
濃度（Concentration）
在此語境下特指懸浮沉積物在水體中的質量密度，标準單位為毫克/升（mg/L） 或克/立方米（g/m³）。計算公式為：
$$ C = frac{m_s}{V_w} $$
其中 (C) 為濃度，(m_s) 為沉積物質量，(V_w) 為水體體積。
美國地質調查局（USGS）
明确定義沉積物濃度為"懸浮沉積物質量與水體體積之比"，是水文監測的基礎參數（來源：USGS Water Science School）。
https://www.usgs.gov/special-topics/water-science-school/science/sediment-and-suspended-sediment
中國科學院地理科學與資源研究所
在河流泥沙研究中強調其作為"衡量流域産沙能力"的指标，直接影響水資源管理決策（來源：《中國水土保持科學》）。
歐洲環境署（EEA）
将沉積物濃度納入水體生态評估體系，指出超過50 mg/L可能對敏感物種造成脅迫（來源：EEA Technical Report）。
https://www.eea.europa.eu/publications/technical-report-2020-sediment
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sediment concentration 是由兩個核心詞彙組成的術語，其含義需結合兩部分理解：
Sediment concentration 指單位體積液體（如水）中所含沉積物的質量或體積比例，通常用于描述水體中懸浮或沉降顆粒的密集程度（, ）。
常用方式包括：
如需更完整信息，可參考環境科學或水文學專業文獻。
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