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The work of Sanger and Stopes reached only a small fraction of the millions of couples who in the 1920s and '30s lived in a world irrevocably altered by World War I, crushed by economic depression, and striving for the then lowest birth rates in history.

斯托卜斯和桑格的成果仅仅影响到数百万夫妻中的一小部分，在1920和30年代，这些夫妻们生活在一个被第一次世界大战不可逆转地改变了的世界，他们受经济萧条的冲击，并随后千方百计地把生育率降低到历史上的最低水平。

YONG PING ELECTRLCL.,LTD located at the world small commodity - Zhejiang Iwu, the company in line with "strives for the survival by the quality, asks the customer by the prestige, innovates strives for the development" the objective, passes through many year endeavors, presently acts the national each kind of brand electric iron, the electric drier, the steam to brush, has a permanent wave, and so on for representative's over a hundred type products, but may also welcome the incoming sample ordered merchandise, our product sells to South Korea, Japan, Russia, Hong Kong, the Middle East directly and so on domestic and foreign several dozens countries, set up the good market image, has established the good brand prestige.

永平家电有限公司位于世界小商品之都-浙江义乌，公司本着&以质量求生存，以信誉求顾客，以创新求发展&的宗旨，经过多年的努力，现代理全国各种品牌电熨斗、电吹风、蒸汽刷、烫发器、等为代表的上百个种类的产品，还可欢迎来样定货，我们的产品直接销往南韩、日本、俄罗斯、香港、中东等国内外几十个国家，树立了良好的市场形象，建立了良好的品牌信誉。

Once combustion starts, it should be carried through the mixture very rapidly, and this is assisted by making the clearance space above the piston as small as possible, and by careful design of the cylinder head.

一旦燃烧开始，混合气就应高速彻底燃烧。使活塞上的余隙空间尽可能小些并精心设计气缸头，有助于解决这个问题。

Simple RAM architecture is substituted by the combination of CAM and RAM for forming PID information table, by which the resource is saved and high speed performance is obtained. A "two step" algorithm of Program Clock Reference correction was proposed, which reduces the complexity of hardware design obviously and limites the PCR jitter in a small range. Based on the remuliplexer, thr...

该方案采用 CAM+ RAM组合代替简单的 RAM结构用于构造 PID信息表，在保证速度的基础上，大大节约了资源；提出了&两步法&PCR校正算法，在保证节目时钟基准校正精度的基础上，大大减小了硬件设计的复杂度；基于该再复用器，提出了 MPEG- 2传输流、纯数据、主控机插入等几种实用的数据插入方式，以适应不同的应用环境

Permanent magnet generator direct driven by wind-turbine becomes the tendency of wind power development. In our country, the study of DPMG is being at initial step and the small-to-medium wind power plant for stand-alone generation-battery system directly driven by wind turbine is quite fit to remote village, pasture, frontier or coast defensive station due to its operating reliability and low cost.

我国对直驱式风力发电机的研究尚处于起步阶段，运行可靠、成本较低的中小型直驱式风力发电系统非常适合于我国的偏远农村、牧场、海防及边防哨所的供电，对改善这些地方的生产生活条件有深远的意义。

The transverse bar of the carriage contains ways on which the cross slide is mounted and can be moved by means of a feed screw that is controlled by a small handwheel and a graduated dial.

大拖板上有横向导轨，使横向拖板可以安装在上面，并通过丝杠使其运动，丝杠由一个小手柄和刻度盘控制。

An arbitrary shaped line current on a horizontal plane is divided into many small line segments and approximated by Hertzian diploes, then both the near and far EM-field of the line curennt is approximated by the summation of the complete near and far fields of Hertz dipoles.

水平面上任意形状线电流分割为许多小段之电流，每一小段之电流近似为赫芝偶极，则在三度空间任意座标平面上无论远近之电磁场即可以赫芝偶极之远近完整电磁场加总合成近似之。

There were soft rugs, rich, upholstered chairs and divans, a grand piano, a marble carving of some unknown Venus by some unknown artist, and a number of small bronzes gathered from heaven knows where, but generally sold by the large furniture houses along with everything else which goes to make the perfectly appointed house.

房间里铺了柔软的地毯，还有华贵的沙发椅和长沙发，一架大钢琴，一座无名艺术家雕的维纳斯大理石雕像，一些不知道从哪里收集来的小铜器饰物摆设。不过这类东西和别的一些小玩意儿，那些大的家俱店一般都有出售，都是构成&尽善尽美家庭住宅&不可缺的。

It shows that the exhaust resistance at the wind blast end reduces obviously, driven by the 800mA/12V small scale draught fan, average exhausting speed reaching above 4m/s, fairly enough to satisfy the air conditioner's demand for new wind volume. Meanwhile, the conic section of the horizontal profile and the linear design of the longitudinal profile of the exhaust end inner cavity and wind shroud for each outlet greatly reduce the flowed out exhaust, effectively lowering the wind blowing feel of the air conditioner user by playing the function of air diffusion.

经过计算和实际测试表明，该装置的送风末端风口阻力明显减小，在800mA/12V小型风机驱动下，出口平均风速可达4m/s以上，足以满足空调对象的新风量要求；同时，横截面采用2次曲线型设计、纵截面采用流线型的送风末端内腔和出口均风罩使气流流出后风速迅速衰减，起到散流器的作用，有效降低了空调对象的吹风感。

This paper introduces how the small fertilizer plant control diluted ammonia waste water by process flow of recovery liquid ammonia product by distillation technology, and also introduces its equipment selection, project investment and benefit analysis.

简要介绍采用蒸馏回收液氨技术治理小氮肥厂废稀氨水的工艺流程、术特点、备选型、控水平以及工程投资与效益分析。

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。