查询词典 echo chamber

The upper chamber on each side is called the atrium. This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle.

两侧的上腔室被称为心房，并通过一个密封瓣膜连接到更大更有力的下腔室。

The article introduces structure and design characteristics of Water Chamber Shell and expansion joint for 300MW and 600MW High Pressure Heater,and the way of drawing for the three-dimensional bottom shell of water chamber.

某公司设计制造的300MW、600MW机组高压加热器的水室包壳及膨胀节的结构、设计特点，及水室下部包壳的三维画法。

An exhaust passage (54) passes through the coolant chamber and communicates with an exhaust expansion chamber (67) formed by an extension case (4) to be positioned below the mounting case.

排气通道(54)穿过冷却剂室，并与由延伸壳体(4)形成的排气膨胀室(67)连通，该延伸壳体位于支撑壳体下面。

This indicates that the broken rocks of crushing zone, produced in the previous spring blasting, has fallen off from the chamber wall, and erupted out of the borehole with the succeeding actions of the shock-wave and the explosion gas further expansion in the chamber.

这表明二次爆扩时的爆炸冲击作用使前次爆扩产生的本已粉化破碎的岩石脱离腔体，随高速喷发的气体产物冲出孔外，从而使空腔体积因碎岩脱落排出而增大。

Using fluid dynamics FEM (two dimensional, three dimensional andaxisymmetric) and three dimensional acoustic FEM in meticulous analysis ofexpansion muffler structure, this paper studies the influences of each mufflercomponents' position, dimension, form and quantity on the fluid dynamic andacoustic performances;therefore the paper indicates that the end of the intruding tubeis the linchpin of the fluid dynamic performance of the whole muffler structure, thespringhead of muffler fluid dynamic performance is the smoothness of air current, themain factor which affects the acoustic attenuation value of expansion chamber muffleris the grade of saltation of the section of air conducting access, and the attenuationvalue of specific frequency can be dramatically enhanced by carefully designing thelength of expansion chamber.

本文通过流体力学有限元方法和三维声学有限元方法对扩张腔消声结构的参数化模型进行了细致的分析，研究了这种结构的各个组成部份的位置、大小、形状和数量对其流体力学与声学性能的影响，指出插入管端口是影响整个结构流体力学性能的关键，消声结构流体力学性能的根源是气流通过时的平稳程度；影响扩张腔消声量的主要因素为声波传播通路截面突变的程度，并可以通过精细的设计扩张腔轴向长度获得宽频或指定频率消声量的大幅度提高。

Based on the integration of the results of acoustic andfluid dynamic analysis, this paper points out that synthetical acoustic and fluiddynamic performance of muffler can be obtained by using square expansion chamber,by stringing together several podgy expansion chambers, by applying noise absorbingmaterial on chamber walls, by making chambers and pipers co-axial, by adding filletson the end of intruding pipes, and by making the diameter of outlet pipe a little greaterthan the diameter of the inlet pipe.

通过综合流体力学和声学有限元两方面的分析的结果，指出了采用方形扩张腔，采用多个短粗扩张腔串联，扩张腔壁面附吸声材料，使各管道同轴，在插入管端口加上圆角，并且令出口插入管管径略微大于入口插入管管径可以使消声结构获得最佳的声学和流体力学综合性能。

Gas chromatographic analysis of 2-chloroethyl ethyl carbamate WANG Yue-feng, YANG Rui, SHE Yong-hong, ZHANG Hong-chao (Sanonda Zhengzhou Pesticide Co., Ltd., Zhengzhou 450009, China) Abstract: Separation and quantitative determination of 2-chloroethyl ethyl carbamate was conducted using gas chromatography with FID using an OV-101 packed column and biphenyl as the internal standard. Column temperature was 190℃, the ignition chamber was 230℃, and the test chamber was 230℃.

2-氯乙基氨基甲酸乙酯气相色谱分析王跃凤，杨睿，佘永红，张宏超(沙隆达郑州农药有限公司，郑州 450009)摘要：采用气相色谱法，柱填充物为3% OV-101涂渍在 Chromosorb W AW DMCS (180~250m)上，柱温：190℃，气化室：230℃，检测室：230℃；内标物为联苯，用内标法对2-氯乙基氨基甲酸乙酯有效成分进行分离和检验。

For the active acoustic fuze for a torpedo on the basis of the distance measurement done by using acoustic pulses, the echo of a randomly undulating wave is a main disturbance to recognize a surface ship.

摘 要：基于脉冲回声探测的主动声引信识别水面舰船，随机起伏的波浪回声干扰是限制其可识别水面舰船最小吃水的主要因素。

With ADAS 3-D data assimilation system, reanaiysis data of NCEP, radar echo andGMS5 satellite image had been applied to simulate the event.

本文利用非静力平衡的中尺度模式ARPS(V5.2)，使用1°×1°NCEP再分析资料，运用ADAS 三维同化系统对雷达回波、红外云图进行了同化，然后进行了48小时数值模拟，并设计了四个敏感性试验。

Cape plumbago provides a faint echo of blue behind deep-blue lily-of-the-Nile (Agapanthus 'Storm Cloud').

角石墨提供了深蓝色的背景，尼罗河。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。