查询词典 multistage

Point out among multistage amplifier reducing total noise directioning of coefficient , design one low in noise to setover the circuit, there is certain reference value to the design of the circuit amplifier.

指出在多级放大器中降低总噪声系数的方向，设计出了一种低噪声偏置电路，对电路放大器的设计有一定的参考价值。关键词：电子噪声，电路噪声，噪声计算

The present invention is one technological process of multistage hydrogenating and cracking inferior heavy and residual oil in suspension bed.

本发明公开一种加工劣质重、渣油的悬浮床多段加氢裂化工艺过程。

The multistage hydrogenating apparatus for the suspension bed hydrogenation includes at least one section of high temperature reaction region and one section of low temperature reaction region.

悬浮床加氢反应采用的多段反应装置至少包括一段高温反应区和一段低温反应区。

Based on the analysis on the oil sources and migration pathway of this area, the mineralization modes of the oil sand in the area are derived in this paper. Main conclusions are drawn as follows: a. multiphase tectonic activity resulted in multistage hydrocarbon generation of the source rock; b. threestage tectonic activity and threestage mineralization process formed a great deal of unconformity and fault pathway, thus the crude oil could migrate in a long distance; c. the tectonic activity in Yanshan and Himalayan stages uplifted the edge of the basin and the eroded reservoir outcropped to the surface, the light oil escaped and then the oil sand resource formed; d.

通过对该区油源和运移通道的分析研究，得出该区油砂的成矿模式：①多期的构造活动使烃源岩多期生烃；②三期构造活动、三个阶段的成矿过程，形成了大量的不整合面和断层通道，使原油远距离运移；③燕山期和喜马拉雅期构造活动使盆地边缘抬升，经受剥蚀，油层出露地表，轻质油逸散形成了现今的油砂资源。

The possibilities for rationalizing the technology of reinforced steel production are demonstrated by means of fem-simulation of multistage rolling process.

合理化被加强的钢铁生产技术的可能性通过多级辗压过程的fem模仿被展示。

Finally,this paper overviews the difficulties in the observation and research on subsurface fluid and geochemical change taken as some earthquake precursors and proposes the earthquake prediction effort to overcome these difficults,such as adopting a multistage,multisite and multidisciplinary approach;using sensitive telemetered instruments of good long term stability and fine time resolution;developing sufficiently realistic geophysieal and geochemical models;using appropriate statistical methods.

同时指出了对地下流体和地球化学作为地震前兆来观测研究的困难所在以及为了克服这些困难而应该采取的地震前兆观测研究的方向，例如多种手段和多种原理方法，开发有效的地球物理和地球化学模型以及适当的数据分析统计方法等。

After analyzing the properties of the crude volatilizing gas in overhead tank and the requirements of its recovery method,an effective way of recovering by natural gas through the matched multistage ejectors is proposed and in combination with the experimental results of two sets of systems under multiple operating mode,some main points of design and mana...

在分析了高架罐原油挥发气的性能特点及其回收方法的要求以后，提出了通过匹配式多级喷射器利用天然气进行回收的有效途径，并结合两套系统多种工况下的试验结果，给出了以方便工程应用为准则的匹配式多级喷射器的设计管理要领：全压缩比的分配，两级时，第一级约为第二级的 1.4倍；三级时，第一、二级应分别为第三级的 1.8倍和 1.3倍左右；设计点要选择在工作气体参数范围的下限或下限附近；整套系统串联的级数以 2～ 3级较为合适，一般不应超过 4级；在高架罐的耐压范围内，原油挥发气的压力越高对回收越有利

Baffle-plate of stepless adjustable length is designed on the base of the old multistage length baffle plate.

无级定尺挡板是在原多级定尺挡板的基础上设计而成，它把先进的伺服控制理论和普通液压系统相结合，实现对任意定尺的工艺要求。

Run cost to reduce the whole that supplies chain, reduce " long whip effect " influence, built multistage to supply the Mu Lti-agent model of catenary, use genetic algorithm is forecasted to its demand undertake optimizing study.

为降低供应链的整体运作成本，减小&长鞭效应&的影响，建立了多级供应链的Mu lti-agent模型，并运用遗传算法对其需求预测进行优化研究。

The root inducation rate is 100% on the cotton, pearl rock and agar medium, but the number of root induced is maximum. The average number is 5.47. The young root possess many multistage branchs. The transplant effect also showed pearl rock is ideal substitute for agar.

珍珠岩、琼脂和脱脂棉的生根率都达到100％，生根数以珍珠岩最高，平均5.47条，幼根具多级分枝，试管苗移栽也表明，珍珠岩在地灵试管生根中是琼脂的理想替代物。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。