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sediment n.1.沉淀(物);沉渣。2.【地質學;地理學】沉積物。

sedimental

The bottle should not be allowed to touch the bottom in the sampling to avoid stirring up the sediment . 為了避免在采樣過程中攪起沉積物質,瓶子不得接觸水底。

Carbonate sediments in all environments are basically products of an ancient biochemical system . 一切環境的碳酸鹽沉積物,基本上都是古代生物化學體系的產物。

Many problems in sediment engineering involve dealing with river valley deposits as a whole . 泥沙工程中的許多問題都把河流的河谷沉積物作為一個整體來研究。

Extraction of humic substances from sediments is often the first task that confronts the investigator . 從沉積物中萃取腐植物是研究工作者遇到的第一個問題。

In the determination of the inorganic constituents of the sediment there are two ways to look upon the analysis . 對沉積物中無機成分的測定有兩種分析方法。

These wastes are sluiced directly into streams, they may create severe downstream sediment damages . 這些廢料直接排入河流,可以引起嚴重的下游泥沙危害。

Celestite is usually diagenetic but commonly forms very early in the history of the sediment . 天青石一般是成巖期的,但通常是在沉積史的極早期形成的。

The deposition of sediment in channels decreases the channel capacity and the flood-carrying capacity . 泥沙淤積在河道內,減少了河槽容量和泄洪能力。

The deposition of sediment in our natural stream channels has greatly aggravated floodwater damages . 泥沙淤積在天然河道,已大大加劇了洪水的危害。

The problem of determining critical conditions for entrainment of sediment has long been considered . 確定泥沙起動的臨界條件問題已經研究很久了。

Mercator might be used by a geologist mapping current directions in palaeozoic sediment . 地質學家可用麥卡托投影來繪制古生界沉積中的水流方向。

Mrecator might be used by a geologist mapping current directions in palaeozoic sediments . 地質學家可用麥卡托投影來繪制古生界沉積的水流方向。

Such rapid influxes of sediment probably overwhelm the bottom dwellers in an area . 沉積物如此迅速的匯集可能把這一地區的海底生物全部淹沒了。

The term sediment as used in this section may also refer to solids other than sand particles . 除泥沙外,其它一些固體在本文中也屬泥沙范疇。

The total volume of sediments carpeting the ocean bottom has turned out to be surprisingly small . 覆蓋海底的沉積物的總體積顯得驚人地微小。

Sediment deposits in ditches result in the raising of water tables and damage to crops . 泥沙淤積在排水溝引起地下水位上升,并危害作物。

Suspended sediment also injures the gills and breathing structure of certain types of fish . 懸沉積物還傷害某些魚類的的魚鰓和呼吸結構。

Very great strides in sampling ocean-floor sediments were taken in the late 1960's . 海底沉積物取樣的巨大進步是發生在六十年代后期。

The oldest sediments cored to date are about 150 million years old . 到目前為止取出的最老沉積物的巖心是大約15億年以前的生成。