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Congenital element, because be born before, of pregnant woman hidebound, systemic sex disease, certain and familial genetic element (if the tooth is mixed,the character of jaw bone and size often affect a tooth, cause dental amlposition or jackknife to wait); Acquired element, basically be undesirable habit (consistent side sex is masticatory, buccal breath, make force of parity of tongue, lip, buccal share is destroyed, those who cause jaw growth is not not well-balanced, harmonious) with all sorts of tooth disease.

先天因素，由于出生前，孕妇的营养不良，全身性疾病，某些家族的遗传因素（如牙齿和颌骨的性状和大小常常影响牙位，造成牙齿错位或重叠等）；后天因素，主要是不良习惯（如一侧性咀嚼，口呼吸等，使舌、唇、颊部分均势力量受到破坏，导致面颌发育的不匀称、不协调）和各种牙病。

In this article, a three-dimensional finite element model of large-scale vacuum transfer line is developed, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线管系的三维有限元分析模型。

In this article, a three-dimensional finite element model of four-branch-pipe-joint vacuum transfer line is set up, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线五通管系的三维有限元分析模型。

According to above, the mini force sensor is designed and the rationality of different way of choosing force element is evaluated, metal strain sheet, pressing-electricity element, pressing-resistance element and practical experiment result.

在此基础之上，设计了微力传感器，对比分析了利用金属应变片、压电晶体、压阻元件作为力敏元件的优劣和可行性以及实际的实验结果。

It includes the following steps: first, choose the speed of operation, direction, protection mode and protection sustaining mode; second, choose the initial point net element and the stop point net element; third, confirm the download/upload port on the two net element; fourth, take route restriction; fifth, taking route calculation; finally, send the route information to user for affirming, if user is satisfied, device completion operation configuration could download.

选定业务的速率和方向和保护方式及保护支持方式；2。选定业务的起始点A网元和终止点Z网元；3。在A网元和Z网元确定业务上下的端口；4。进行路由限制；5。进行路由计算；6。将计算得到的路径信息给用户确认，如果用户满意，确认后可下发设备完成业务配置。

Firstly, two examples, which belong to static analysis and dynamic analysis respectively, were given to show the effectiveness of discrete element method. Then the discrete element method was used to perform dynamic analysis of the Chinese 1 km deep-ocean mining system. The dynamic performance of the entire mining system under different current directions was discussed and compared with that from finite element method.

首先，从静态分析和动态分析两方面，给出2个典型算例，证明该方法的有效性；然后，将离散元方法用于中国1 km深海采矿系统的动力学分析，讨论不同海流方向下整体系统的联动性能，并与有限元方法进行对比。

In third part, I discussed R0 algebra in two different aspect:(1) Defined Boole element in R0 algebra. Gave the properties of Boole element and distributive rules of Boole element about finite R0 algebra. Study the filter and the stone filter of L are filters of M.

元的分布规律：研究了民代数M的滤子和民代数M作为有界分配格（记这个有界分配格为L（MO 的滤子之间的关系，得出结论：L的极小素滤子以及 L的 Stone滤子都是 M的滤子，但 L的滤子一般不必是M的滤子。

This paper presents the concept of structure basic element, structure variable element and the structure variable element design method.

从产品整个生命周期的产品数据模型分析入手，结合结构设计本身的特点，对结构设计的产品数据建模进行了研究。

A stand for a camera device, the stand comprising an attachment element which is detachably fastened to the camera device and at least one support element which is displaceably connected to the attachment element.

一种用于摄影机器件的支架，这种支架包括可拆卸地紧固到这种摄影机器件的附接元件和可位移地连接到这种附接元件的至少一个支撑元件。

Armour is low the SAS that cause is put in double element, namely block element and centre sex element.

甲低造成的SAS存在双重因素，即阻塞因素和中枢性因素。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了