查询词典 crater

The crater is a cauldron-shaped depression in the centre of which is a spread of water grown thick with artemisia and mugwort as in a swamp .

火山口四周高，中间低，像个巨大的铁锅。"锅底"有少许积水，早已成了蒿草丛生的沼泽了。

It has a somewhat distorted octahedral shape and a metallic-looking shine that is characteristic of diamonds from the crater.

虽然八面体的棱角不是很清晰，但却闪烁着"钻石坑"宝石所特有的金属光泽。

Once its instruments have analyzed the mineral landscape of the crater, Spirit will roll toward the hills east of the landing site and use its panoramic camera to image an area that could possibly contain exposed rock layers.

一旦分析完陨石坑的矿物特征之后，"勇气"号将会驶向着陆地点东部的丘陵，并用其全景照相机给一个可能有暴露岩层的地区拍照。

The calculated results showed that assessment points were under the curve and assessment results showed that the penstock's crater defects were safety.

计算结果表明，评定点落在曲线定义的范围内。评定结果表明，压力钢管含有该范围内的弧坑缺陷是允许的。

The Earth sank below the top of the crater wall and at once it was pitch-dark around him.

地球沉在了环行山顶的外面，他周围立刻被浓重的黑暗所包围。

According to the study of forming mechanism of meteorite-stricken crater, the distribution rule regarding plagioclase on the earth surface is as below

根据陨击成坑机制的研究，发现有关斜岩在地球表面分布规律是

According to the study of forming system of meteorite-stricken crater, the distribution rule regarding plagioclase on the earth surface is as below

根据陨击成坑机制的研究，发现有关斜岩在地球表面分布规律是

A shorter hike takes you up Puna Pau, a smaller crater which provided stone for the red topknots that originally crowned the island's statues.

更短的加息行动将您普纳加索尔，小火山口其中规定的红色石头原来加冕topknots岛上的雕像。

Northeast tigers, bears, Qingyang, red deer and other wild animals, often to the crater activities.

东北虎、熊、青羊、马鹿等野生动物，也常到火山口活动。

Bob Wehle of Ripon, Wis., found the diamond at the Crater of Diamonds State Park in Murfreesboro Oct.

目前居住在威斯康星州里彭市的鲍勃·威勒是在10月14日游览坐落在阿肯色州钻石坑公园时找到那颗钻石的。

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。