查询词典 alluvial fan

According to the characters of organic maceral, organic type, biomarker,it can be divided to five types of sedimentary facies: unrest restricted sea graptolite facies, alluvial restricted sea, carbonate mesa algal deposit facies, mud mesa algal deposit facies and deep water shelf algal deposit facies.

根据烃源岩有机显微组分、有机质类型、生物标志物及成烃能力等特征划分出五类沉积有机相，即动荡局限海笔石相、滞流局限海笔石相、碳酸盐台地藻积相、泥质台地藻积相和深水陆棚藻积相。

The Helix Spiral is a commercial duty, continuous feed, gravity concentrator for both alluvial and fine-milled hard rock ores.

这种螺旋机组是商业现役，可以连续给料的重力选矿设备，适用于砂金矿，和磨细后的岩金矿。

Tin deposit types include the structural alteration zone type,altered rock body type,greisen type,porphyry type,quartz-vein type and alluvial type.

湖南骑田岭芙蓉矿田是近几年发现的超大型规模的锡多金属矿田，目前已发现锡矿脉40多条，锡矿类型有构造蚀变带型、蚀变岩体型、云英岩型、斑岩型、夕卡岩型、石英脉型、冲积型等多种。

Kenli County, known as the broadest, the most complete, and the youngest wetland system in the warm temperate zone, is located at the mouth of Yellow River, the mother river of China, which carries alluvial deposits to create new land of 32.4 square kilometers every year. Meanwhile, the county holds rich oil and natural gas resources and ample seafoods such as holothurian. It also served as an important holy revolutionary base in 1940s.

山东省垦利县位于中华民族的母亲河——黄河的入海口，黄河每年携沙在垦利造陆三万亩左右，被誉为共和国最年轻的土地，拥有我国温带最年轻、最广阔、最完整的湿地生态系统；同时，垦利作为胜利油田的发祥地和主产矿区，地下油气资源富集；这里也是著名的红色革命老区，有山东的"小延安"之称；垦利濒临渤海，盛产海参、黄河口刀鱼等名优海产品，素有"百鱼之乡"、"黄金海岸"的美誉。

The district is largely under intensive cultivation and agriculture is plentiful on the fertile alluvial soils.

该地区主要是根据精耕细作和农业丰富的肥沃的冲积土壤。

Results showed that high quality black tea was mainly produced in red soil, red yellow soil and intermountain alluvial terraces formed by fluvial outwash, with loose soil texture and high soil organic matter content.

分析表明，优质红茶产地主要是红壤、红黄壤和河流冲积形成的山间冲积台地，土壤质地疏松，有机质含量较高。

The deep water deposition means the deposition in the area where the water depth is larger than 30 meters, in which the major sediments are coarse sand and gravel. This kind of deposition is the relic deposition formed by the Pleistocene alluvial-lacustine deposition reworked under modern channel currents actions, and ususally the Holocene acummulation lack in the deep waters. The transitional zone deposition is the deposition between the low tidal level line and the 30 meters isobath, where the sediment types is changeable and the grain sizes are gradually coarsening from the low tidal line to the deep water area. This kind of deposition is developed by the deep water eroded sediments sorting under the transitional zone current action. The different types distributed along the isobath. The tidal flat deposition is the fine sediment deposition on the tidal flat which is flo sedimentation of the silty clay under the tidal flat dynamic action and ususally developed fluid mud on the lower tidal flat. The channel mouth deposition is the deposition in the channel mouth area. According to the sediment types, it includes sand deposition where there are coarse sediments supply and silt deposition where there are only fine sediments surpport.

峡道深水区沉积是指水深大于30米的峡道底部沉积，它以粗颗粒砂砾石沉积为特色，是现代峡道水动力对第四纪海退时发育的冲洪积和坡积物进行改造形成的蚀余沉积，全新世沉积地层往往缺失；峡道过渡带沉积是指水深介于低潮位线至30米水深线之间发育的峡道边坡沉积，该带沉积以沉积物类型多样为特色，自低潮位线至30米水深线，沉积物粒级逐渐变粗，由粉砂质粘土逐渐递变为中粗砂，是峡道深水区沉积物经多次分选沉积而发育的，基本平行于等深线分布的条带状沉积，在岸坡较陡岸段，过渡带下部可发育重力沉积；峡道潮滩沉积是指在低潮线与海岸线之间发育的细颗粒沉积，它是粘性细颗粒泥沙在潮滩动力作用下，发生动水絮凝沉积而形成的粉砂质粘土沉积，在低潮滩可发育浮泥；峡道口门区沉积则是在峡道汇入大海或海湾时，在峡道出口水流影响所及范围的沉积，根据峡道口门区供给泥沙的特性，峡道口门区沉积有粉砂质淤泥沉积和砂质沉积两种类型。

Shiyang and the Heihe River has a vast alluvial and lacustrine plains.

石羊河和黑河下游有广阔的冲积、湖积平原。

As caught in the Helan Mountains, Yinshan series between the Ordos Plateau and the rift lacustrine alluvial plain.

为夹在贺兰山、阴山与鄂尔多斯高原之间的一系列断陷湖积冲积平原。

The results show that when the depth gradually reduces, pH values gradually increase, but conductivities and (superscript – subscript 3) content gradually reduce. There are also obvious differences between the groundwater in loess, alluvial deposit and acidity rock in the south of Chang'an, which relates to the depth, the characters of loess, the lixiviation and the evaporation. The element content of groundwater is high in the loess tableland, so it's fitter for drinking than the groundwater in the Cuihua mountains, which is of acidity and low element content.

结果表明，长安南部黄土塬随着层位的降低，pH值有逐渐增大趋势，电导率和HCO(上标–下标 3)含量有逐渐减少的趋势；黄土地下水、冲积层地下水和酸性岩石地下水的化学成分存在明显差异，这与其理深、地层性质、溶滤与蒸发作用不同有关；长安南部少陵源黄土地下水元素含量较高，比呈酸性、元素含量低的翠华山泉水更适于饮用。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。