可平面性

Earth fissures express themselves at land surface as straight line,crenata,polygonal line and forniciform.

地裂缝地质灾害平面形态上可分为直线型、雁列型、锯齿型、折线型和弯曲形。地裂缝地质灾害空间分布上有方向性、群集性和系统性。

Finally, the programme of design for routing protocols is chose in the thesis. Secondly, improved algorithms are introduced in detail. In order to achieve to reduce duplication of data sent in, save energy, prolong the network lifetime and balance the network load, improved algorithms are based on the minimum hops algorithm which is one of the energy-aware routing, When the characters of the minimum hops algorithm are analysed in detail,multi-path routing, adaptive dynamic routing, routing reliability are designed.Then a new algorithm based on minimum hops in plane routing protocol and a new algorithm based on minimum hops in clustering routing protocol are designed in the thesis.

接著详细介绍了本文的改进路由算法，为实现减少数据的重复发送量、节约能量、延长网络寿命、平衡网络负载的目标，本文以能量感知路由之一的最小跳数算法为基础，详细分析了最小跳数算法的特点，设计了多路径修正路由，自适应动态路由，路由可靠性机制三方面的改进方案，并且结合改进方案设计了基于最小跳数的改进平面路由协议和基于最小跳数的改进分簇路由协议，将两种类型算法的优点相结合，提高网络的健壮性与可扩展性。

Good processing quality,able to processed into various complicated shapes such as plane,arc and spherical surface.

加工工艺性好、可加工成平面、弧形面和球形面等各种复杂的形状。

N-phenyl maleimide,1-Phenyl-1H-pyrrole-2,5-dione,N-phenylmaleic imide、Maleimidobenzene is abbreviated NPMI or N-PMI,pale-yellow aciform crystals.The melting point is 88～92℃.NPMI is a kind of heat resisting organic monomer,and can increase material thermostability by raising intemal rotation resistance of macromolecular,using its special molecular struture.

N-苯基马来酰亚胺俗称&单马&，英文名称为；N-phenyl maleimide、1-Phenyl-1H-pyrrole-2，5-dione、N-phenylmaleic imide、Maleimidobenzene，英文缩写NPMI，淡黄色片状晶体，熔点为88～92℃，是近年发展起来的一种耐热有机单体，由于它具有五元环状平面结构，嵌入高分子链中可增加链的内旋阻力，从而提高材料的耐热性。

A photonic crystal-air interface or line defect is utilized as a holophote or a partial reflective mirror to design a paralleled plane cavity, a single ring cavity structure and a multi-ring cavity structure. The method has simple design idea, good integration and wide application; by adopting the method, the self aligning photonic crystal lasers with different wave bands can be designed according to the luminescent characteristics of different materials; particularly, the utilization of semiconductor materials to design a light source of optical communication wave bands has more important practical value.

利用光子晶体-空气界面或线缺陷作为全反射或部分反射镜设计平行平面腔、单环形和多环形腔结构；该方法设计思路简单，集成性好，适用范围广，可根据不同材料的发光特性设计不同波段的自准直光子晶体激光器，特别是用半导体材料设计光通讯波段的光源器件具有更重要的实用价值。

The grating of plane change distance is applied to break the white light into monochromic light at the 3W1B in the BSRF,and obtain a good monochromic light source of good energy resolution,high intensity,broad energy spectrum.

在北京同步辐射源的3W1B束线上，利用平面变间距光栅分光，获得单色性较好，强度较高，能谱连续可调的单色光源。

In chapter 4, the plane-radial and plane-parallel flows for Newtonian fluid in fractal porous media are analyzed. Based on the same assumption as that in chapter 3, the expressions for porosity, flow rate, velocity and permeability for both radial and parallel flows are developed. The proposed expressions are expressed as a function of tortuosity, fractal dimension, maximum and minimum pore diameters, and there are no empirical constant and every parameter has clear physical meaning in the proposed expressions.

第四部分研究了分形多孔介质中牛顿流体的平面径向和平行流动，考虑到实际毛细管的弯曲性和毛细管管径的分形分布，给出了径向和平行流动时的孔隙数目、孔隙率、流量、流速和渗透率的分形表达式；得到了分形多孔介质中微可压缩流体的压力分布方程；得到了无量纲的渗透率、压力和流速的解析表达式。

The lead-less piezoelectric ceramic composition is prepared through sintering at relatively low temperature, say, 1190 deg.c or even lower, and has good piezoelectric characteristic, practical plane electromechanical coupling coefficient kp, high Curie point and no lead and lead compound contained.

本发明的制备工艺能在较低温度下，如1190℃或更低温度下烧结无铅压电陶瓷组合物，使制备的无铅压电陶瓷具有好的压电性、可实用的平面机电耦合系数kp和高的居里温度，制备工艺过程中不含铅或铅的化合物。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。