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Its southeastern and northern parts are surrounded by mountains, and a vast plain spreads across the centre of the prefecture.

它的东南部和北部地区周围的山,广阔平原之间传播的中心,县。

Both abortive rate and vertical transmission rate arose with the increasing of T.

流产率和垂直传播率都随着接种速殖子数量的增加而升高。

In this paper, the dynamic behaviours of polymer-cement composite material are investigated, including the dynamic rigidity, internal frication and ratio of elastic energy to unelastic energy in hysteresis loop under vibration, the stress wave propagation and attenuation in this material, the impact toughness and abrasiveness.

本文研究了聚合物水泥复合材料的动力性能,其中包括动力刚度、振动状态下的内耗及振动滞后曲线中的弹性与非弹性应变能之比、应力波的传播与衰耗、冲击韧性和耐磨硬度等。

New US research indicates that the absolute humidity, which measures the amount of water present in the air, is the key to reducing the spread of flu.

美国最新研究表明,空气绝对湿度与流感病毒的传播有密切关系。

The light propagation within an absorbing medium and the reflection and refraction at the interface of two absorbing media are studied.

本文研究吸收介质中光传播和吸收介质界面上的反射和折射。

The set of absorbing boundary conditions based on paraxial approximations of 3-D elastic wave equations are applied to the numerical boundaries.

在此基础上进行了三维盐丘地质模型的地震波传播数值模拟试算。

It is interesting that, to understand the whiteness of snow (upon illumination by white light), absorption can be ignored, but to understand the blueness of light transmitted deep into snow, absorption must be taken into account.

20米深的清澈水中也是如此。有意思的是,为了理解雪看起来是白的,可以忽略吸收;但为了理解传播到雪深处的兰光,就不能不考虑吸收。

The surest way to avoid transmission of HIV is to abstain from sexual contact.

最可靠的避免HIV传播的方法是禁欲。

ABSTRACT Communication signals travel in space with different modulation formats.

空间传播的通信信号采用了不同的调制方式。

Just this Monday, the online community was abuzz with news of a worm rapidly spreading through Yahoo! Messenger.

就在这个星期一,网上社区是充斥著新闻传播的蠕虫病毒迅速通过雅虎通。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。