前概念

And use the prior and more consummate ways to carry through vaneaccidence design, These ways have own technology points and disadvantage, In this paperstressly discuss the momentum-element theory way, this way was developed in the basic ofthe two ahead ways, and it overcome their defect. It also use element theory to deal withvane design. In the vane designing and aerodynamical characteristic calculating they bothrelate with intervene gene, so the keystone is to carry through the intervene gene in twocase, thereout to do the vane design and aerodynamical characteristic calculating.

运用翼型的基本概念和风力机叶片的基础外型参数进行叶片设计的预研讨论，并分别运用了Glauert和Schmitz叶片设计方法叶片进行初步设计，这两种方法有其各自技术特点和缺点，文中还着重研究了动量—叶素理论方法，这种方法在前两种设计方法的基础上发展而成，并采用两者的叶素研究方法进行叶片设计，动量叶素理论方法在进行叶片外型设计和叶片气动特性计算都涉及到干涉因子，文中重点对设计和计算情况下的干涉因子进行处理，并由此来设计叶片的外型和进行气动特性的计算。

Daily supplementation with folic acid for 1 month prior to conception and during pregnancy may reduce the incidence of neural tube defects such as spina bifida and anencephaly in the child.

每天补充叶酸的前1个月的概念，并在怀孕期间可能会减少神经管畸形，如脊柱裂和无脑畸形的儿童。

The introduction, firstly, defines the concept of the literary form, environmental apocalypticism, and the eco-critical approach of environmental apocalypticism research.

在前言中，首先对环境启示录这一文学形式的概念及环境启示录文学研究这一生态批评方法进行界定。

A Framework of Environmental Modelling and Information Sharing for Urban Air Pollution Control and Management Gang-Jun Liu;Er-Jiang Fu;Yun-Jia Wang;Ke-Fei Zhang;Bao-Ping Han;Arrowsmith Colin

管理会计应用中存在的问题分析董美娟；郭斌；王征兵·前均衡CMOS光电集成接收机概念的提出和模拟余长亮；毛陆虹；朱浩波；宋瑞良；陈铭义；王倩；王蕊

"The idea to create a low cut performance shoe came from Kobe, but the evidence we needed to move forward, came from working with the Nike Sports Research Lab," said Avar.

创造低统高性能篮球鞋的概念来自Kobe，但我们需要往前迈进的证据则出自Nike运动研究实验室。

She accepts the proposal from one of Bassano's servants delightedly because that man is as straightforward and courageous as her, although not so good looking.

比如经济全球化、政治全球化……有人用戴安娜王妃之死来阐释全球化的概念：一英国前王妃在巴黎叫一群法国狗仔队盯上了，他们骑着日本产的摩托追上开着德国车的王妃，硬生生将她逼上了不归路。

Process control is based on the newly developed "Relax-Cooling" concept, where the installation of a nitrogen injection dosing feature just before the capper creates a positive pressure of 1.5 to 2 bar inside the bottle.

过程控制是基于新开发的"放松冷却"的概念，其中的一注氮剂量的功能安装前的封盖机创建一个1.5至2瓶酒吧内的正压。

On basis of analysis of geological characteristics of compressional basins in the world,the concept and theory of piedmont and piedmont hydrocarbon accumulation was proposed.

在分析了国内外压性盆地油气地质规律的基础上，提出了&山前&和&山前油气富集成藏&的概念及理论认识。

Restaurant's vestibule is highly inspired by fashion design concept of pleating fabric.

前庭餐厅的前庭是非常鼓舞的打褶时装面料的设计概念。

Based on the relevant movement between hard shaper cutter and grinding wheel, the movements of grinding wheel are studied. The shaping grinding point and the shaping grinding edge are made up with. In order to easily compare when shaping errors and cutting edge"s angles are the most excellent, uniform expressions for convex curved rake face of hard shaping cutter and spatial cutting edge curve are separately developed. The distributions of new profiling cutter"s shaping errors and cutting edges angles are analyzed. The relevant grinding wheel and cam are designed. Due to this paper, a new profiling hard shaping cutter has been manufactured successfully. At last experiments are made to test the performance of hard shaping cutter and all kinds of precision of hard gear.

本文直接从插齿刀与砂轮之间的相对运动关系出发，单独研究砂轮的运动，提出砂轮成形磨削点和砂轮成形磨削刃的概念；分别建立圆柱砂轮和圆锥砂轮磨削后硬齿面插齿刀的波形前刀面方程及空间切削刃方程；为便于比较何种情况下插齿刀的构形误差和切削角度能同时达到最优，分别对磨削五种不同硬齿面插齿刀所用的砂轮进行了廓形设计，并分析了插齿刀的构形误差和侧切削刃切削角度的分布规律；为插齿刀波形前刀面的磨削加工设计了相应的凸轮，用所设计的凸轮和近似的砂轮成功地制造出新构形法硬齿面插齿刀；最后进行插齿加工试验，检验新构形法硬齿面插齿刀的抗崩刃能力、耐磨性及被加工硬齿面齿轮的各项精度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。