查询词典 sand-fish

This text has introduced the geographical position of the dark plain sand ground of hair and climate characteristic briefly, can be used in the main wild ornamental plant afforested in cities and towns and describe in detail to the sand district, have proposed feasibility utilizing and protective measure.

扼要介绍了毛乌素沙地的地理位置与气候特点，对沙区可用于城镇绿化的主要野生观赏植物进行了比较详细地论述，并提出了可行性利用与保护措施。

Based on the distribution of sand-moving wind direction, the dominant wind direction of Yangqing station is WSW due to the regional terrain, the others are all WN, WNW, NNW, the results indicate that the main sand moving direction in Beijing plain is from northwest to southeast.

从起沙风动力方向分布来看，除延庆站受区域地形影响是西南西为主导风向，其余站点的主导风向都是西北、西北西、北北西三个方向，说明北京平原地区的沙尘运移方向主要是自西北向东南搬运。

A small, low island composed largely of coral or sand .a body of water cut off from a larger body by a reef of sand or coral .

被暗礁或是沙滩或是珊瑚从一个较大的水体分割出的一个较小的水体。

Lastly, sand and reef area were compared. Since reef areas has more suitable natural substratum than sand areas.

另外由较大的空间尺度来看，礁区与砂区为两个天然底质不同的区域，在这两个区域分别放置面积相同的附苗板时，由於礁区的天然底质数量较多，根据附苗强化效应，幼生在附苗板上的附苗密度应在砂区较高。

Disturbances with various patterns were exerted to the open channel flow in a flume to quantitatively investigate the variation of turbulence structure during sand ripple formation and its influence on sand movement and river bed evolution. The variation process of flow velocity is measured by means of ADV with sampling frequency of 50Hz.

本文通过在水槽实验中采集的流速过程数据，定量地研究了沙纹阶段明渠水流在不同形式扰动作用下的湍流结构，以及湍流结构对泥沙运动和床面演化的影响。

The stone "color green and yuan, qualitative leap and gold sand, chestnut, silver sand and water ripple, no less than the brook of the stone".

其石"色青而元、质润而栗、有金砂、银砂、水波纹各种，不亚于端溪之石"。

Even in the sand table in the process of downloading the file, will empty as the sand table and delete the.

即使在沙盘进程中下载的文件，也会随着沙盘的清空而删除。

To hit a golf ball out of a sand trap with a shot that scatters the sand .

击出沙坑扬起沙土的一击，将高尔夫球击出沙坑

Sports To hit a golf ball out of a sand trap with a shot that scatters the sand.

击出沙坑：扬起沙土的一击，将高尔夫球击出沙坑

The sand lens reservoir trap has a good structure and reservoir properties for the storage. The sand lens reservoirs with depletion of oil and gas are better CO2 geological storage boxes.

砂岩透镜体油气藏具有良好的圈闭构造和储层物性，油气濒临枯竭的砂岩透镜体是较理想的CO2地质封存箱。

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。