大带

本文采用平面波展开法（PWM）重点研究了二维环型光子晶体的完全带隙特性，为制作大带隙光子晶体以及光子晶体光学器件的设计提供有益的理论依据。

In this paper , some researches have been done about the photonic bandgap of two dimensional annular photonic crystal by the plane wave expansion method ( PWM ) . The theoretic results have particularly great importance for developing photonic crystals with big bandgap and optical devices of photonic crystal .

长方网格与正方介质柱组合构成大带隙二维光子晶体

Talk about great global grid Rectangle Grid of Dielectric Veins and Square Dielectric Rods Forming a 2D Photonic Crystal

土壤微生物是土壤中的活性胶体，它们比表面大带电荷，代谢活动旺盛。

Soil microorganisms are the active colloids in the soil , with charges , high specific surface areas and metabolic activities .

随后介绍了两种特殊结构的光子晶体-正方周期结构的二维光子晶体，通过理论计算分析，这种光子晶体能够得到较宽的禁带带隙，为研究大带隙光子晶体提供了新的思路。

Subsequently two special two-dimensional square-cycle Photonic Crystals are introduced . By numerical analysis , a wide Photonic Bandgap is found in such Photonic Crystals .

沉积相的空间展布概括起来分为三大带：（1）阿尔金山前西段陡坡带洪积锥-水下冲积扇-扇三角洲-河道和泛滥平原-湖相；

Types and distribution of sedimentary facies are divided into three zones : ( 1 ) pluvial alluvial fan fan delta fluvial channels and flood plain lake facies in the steep zone of western Altun mountain front ;

在此基础上，结合明溪中药材产业的实际情况和行业未来发展趋势，树立了立足明溪、技术为本、抓大带小、内生动力、协调发展的目标。

On this basis , it is combined with the actual situation of the pharmaceutical industry in Mingxi and industry trends , and establishes the power of the " Mingxi based , technology-based , grasping the great and the small , endogenous , coordinated development " goals .

不到一年半，我已连大带小有了十二只山羊了。又过了两年，除了被我宰杀吃掉的几只不算，我已有了四十三只了。

This answer 'd my End , and in about a Year and half I had a Flock of about twelve Goats , Kids and all ; and in two Years more I had three and forty , besides several that I took and kill 'd for my Food .

应用模糊推理的方法，将一种自整定PID参数控制器应用于大惯性带纯滞后的系统。

A kind of parameter self tuning PID controller based on fuzzy inference method is used for control system with large inertia and time lag .

选取CST可控软启动和变频控制2种在大功率带式输送机上应用的软启动进行分析，重点对带式输送机传动变频控制方法在中、高压领域的应用进行了详细讨论。

This paper analyses a use of soft starting system for large power belt conveyor , such as controllable start system ( CST ) and converter system .

Woodward在理论上完善了脉冲压缩的思想，提出通过匹配滤波来对大时带积的信号进行压缩，可以得到窄脉冲的输出。

Woodward perfect theoretically the idea of pulse compression , by proposing that the use of matched filter to compress the signal with large Time-Bandwidth Product would make the output more narrow .

本文是以修改的GrennMartin21型为基本翼型，进行了风洞试验以确定大厚度带端板地效翼的纵向空气动力特性。

Taking Grenn Martin 21 reformed for a basis type , the wind-tunnel tests has been conducted to determine the longitudinal aerodynamic characteristics of thicker wings in ground effect with end plates .

我国大倾角带式输送机发展现状

The current situation of sharp inclined belt conveyor in our country

防爆型长距离大倾角带式输送机的研究与试验

Development and trials of flameproof long distance high angle belt conveyor

电渣型单层带极堆焊技术开发国产焊材大面积带极堆焊的应用

The Application of Large Area Surfacing with National Band - electrode

狗心肌梗塞区心肌血管重建的实验研究：大网膜带蒂经皮下隧道移植

Reconstruction of Myocardial Blood Vessels in Cardiac Infarction in Dogs

实验结果表明：在裂尖两侧存在与裂纹方向夹角约为50°的大变形带。

Large deformation bands were observed at each side of the crack .

建（构）筑物下大条带协调式全采方法

Total extraction of seam under surface structures with coordinated strip mining method

大鼠带蒂胃壁瓣肠移植的组织学与电镜观察

Transplantation of pedicled gastric wall flaps to the in-testines in Wistar rats

大功率带式运输机软起动装置试验台的研究

Study on High Power Belt Conveyor 's Moderate Startup Equipment Experimental Platform

防爆型大倾角带式输送机的关键技术及应用

Key technique and application of anti-explosive and high-angle belt conveyor

大规格带肋钢筋矫直工艺的改进

Straightening technology improvement for large size hot rolled rebar

大时带积非线性调频脉压信号及其性能分析

Large time_Bandwidth product NLFM Signals and Their Performance Analysis

扩频通信中信号的大时带积处理

Large Time-Bandwidth Product Processing of Signal in Spread-Spectrum Communications

煤矿用长运距大运量带式输送机的制动动态分析

Large Coal Mine with Long Distance Conveyor Volume of Analysis of Dynamic Brake

长距离大运量带式输送机关键技术及国内发展现状

Key technologies in long-distance large-capacity belt conveyor and its development situations in China

东北地区六大产业带建设研究

On the Construction of Six Industrial Zone in Northeast

大规格带肋钢筋余热处理过程的有限元模拟

Finite element simulation for the remained heat treatment of large gauge ribbed bar

是时候把学校大家庭带回来的时候了德拉加什说。

Its time to bring the university family back together , Dragas said .

大面积带垫层刚性桩复合地基的荷载传递分析方法

Analysis on load transfer for large area composite foundation with rigid piles and cushions

纬度圈上的大地震带

The large seismic zone along latitude circle