風積物 的英文怎麼說
中文拼音 [fēngjīwù]
風積物
英文
aeolian deposit (sediment)-
Study on experiment of particle size of aeolian deposits from laser diffraction size analyzer
激光粒度儀測量風成堆積物粒度的實驗研究Wind-deposited sediment called loess occurs in many places.
被稱為黃土的風成沉積物,在許多地區均有。The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用;磁化率和全鐵很好地指示生物風化成壤作用; sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和植被狀況的變化,指示著成壤過程中腐殖質化的程度; caco3含量的變化,可以反映了黃土古土壤形成時的風化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。( 4 ) we defined ssee factor ( surficial soil element enrichment factor ) and wpem factor ( weathering profile element mobility factor ), and applied them to evaluate the degree of effects of black shales weathering on soil, water bodies and their sediments composition
( 4 )提出了表土層元素富集因子和風化剖面元素遷出因子,用於估算巖石風化對水體及其沉積物、土壤的化學組成影響的程度。It is thought that the holocene original sediments were the result of the aeolation in the area, but the stream action influence the formation of deuterogenic loess
認為本地區全新世原始沉積物是風成的,但流水作用影響了次生黃土的形成。The aeolian sand is the most abundant material in the desert area, but its engineering property is so bad that it has not been used widely as paving material
風積沙是沙漠地區最為豐富的物質,由於其工程性質較差,目前仍未被廣泛用作沙漠地區公路的鋪築材料。On the basis of research of various physical characteristics of coal gangue, fly ash, aeolian sand, through contrast experiment, we chose this new reinforce material
在對煤矸石、粉煤灰和風積砂土的各項物理力學特性進行試驗研究的基礎上,通過對比試驗選擇了可供工程應用的新型固化劑。The favorable reservoir spaces in the carbonate rock could be divided into five types according to their origin, configuration and size, i. e., solution fissure, solution hole, cave, erosional fissure and structural fissure, which form five different reservoirs including cave - type reservoir, erosional fracture reservoir, structural fissure reservoir, and solution pore marginal beach grainstone reservoir
而下奧陶統灰巖段儲集和生產油氣的有效儲滲空間按成因、形態及大小可劃分為溶蝕孔隙、溶蝕孔洞、大型洞穴、風化裂隙、構造裂隙等5類,構成5種性質有別的儲層,即洞穴型儲層、風化裂隙型儲層、構造裂隙型儲層、臺緣灘相顆粒灰巖溶蝕孔隙型儲層和地表殘積物裂隙孔隙(洞)型儲層。Many studies had attempted to characterize chemical weathering process by focusing on geochemisty of river particulate and sediment. the sediment geochemistry may reflect and compare with the carbonates and silicates weathering degree by introducing the chemical index of alteration ( cia ) and new sediment index of variation ( siv ) and elemental molar abundance ratio of the sediment. the one main objective of this study would provide and compare the relative weathering intensities of silicates and carbonates with the different basins
2沉積物地球化學與化學風化進程和機械剝蝕率化學風化指數與化學風化率屬于表徵化學風化作用意義不同的函數,前者為相對概念反映流域巖石在原巖基礎上己發生淋溶作用的深度,主要受到了氣候因子的深刻影響(中國流域沉積物化學風化指數由北到南呈有規則的遞增序列,氣候因子對風化進程的影響掩蓋了巖性的巨大差異) ,而化學風化率含義是指單位流域面積巖石風化淋溶產生的離子絕對總量。Besides its work monitoring open seas across hong kong, the epd also monitors typhoon shelters, boat anchorages, marinas and the government dockyard, using a total of 18 water monitoring stations and 15 sediment monitoring stations
環保署除了在全港海域進行監測工作外,並在境內的避風塘船隻和遊艇碇泊區及政府船塢設立了18個水質監測站和15個沉積物監測站。Water and sediment quality in typhoon shelters
避風塘海水及沉積物質量A number of atmospheric nuclear tests took place from 1945 to 1980. radioactive particulates produced in the explosions dispersed into the atmosphere by the winds and some of them deposited onto the ground. deposition of these radioactive materials increased the level of artificial radiation in the environment
在一九四五年至一九八零年期間,世界各地進行了多次大氣核試爆,所產生的放射性塵埃隨風擴散,部份沉降到地上。這些放射性沉積物為我們自然環境增加了額外的人工輻射。Pollution and potential biological toxicity assessment using heavy metals from surface sediments of jinzhou bay
錦州灣沉積物中重金屬污染的潛在生物毒性風險評價Grain size parameters of loess - palaeosol deposits from graphic and moment methods : a comparative study
末次冰期旋迴風成沉積物圖解法與矩值法粒度參數的對比Photo of bio - remediation of anoxic sediment being carried out in the sam ka tsuen typhoon shelter in 2004
三家村避風塘於2004年採用生化方法處理缺氧沉積物圖片Water and sediment quality in typhoon shelters in hong kong in 2005
2005年各避風塘海水水質和底層沉積物全年統計The 18 water quality monitoring stations and 15 sediment monitoring stations in the typhoon shelters of hong kong in 2005
二零零五年本港避風塘內的18個海水水質監測站和15個沉積物監測站pdfThe environment protection department regularly monitors the water quality in 1, 700 square kilometres of marine waters. its ongoing programme covers 94 water and 60 sediment sampling stations in the open sea, semi - enclosed bays and typhoon shelters
環境保護署在香港1 , 700平方公里的海域內定期監測水質狀況,其中包括開放海域、內灣及避風塘的94個海水水質監測站位及60個海床沉積物監測站位。" a long - term extensive environmental monitoring programme has been put in place since the early 1990s. it consists of water quality, sediment and biota monitoring, together with a risk assessment on the impact on dolphins and humans
一項為東沙洲卸泥場而進行的長遠和廣泛的環境監察計劃自一九九年代初期實施,有關措施包括對水質沉積物及生物的監測,及對中華白海豚和人類影響的風險評估。Loess is silt - sized aeolian deposit and is mainly composed of quartz and feldspars, its osl signals can be set to zero by exposure to light
黃土作為一種風積物,主要礦物是長石和石英,光釋光信號在搬運漂浮於空中時可以被陽光曝曬「回零」 。分享友人