灾害

China is a large agricultural country, which has so much natural disaster.

我国是一个农业大国，同时也是农业灾害发生最为严重的国家之一。

china is one of the few countries that has has suffered serious losses caused by natural disasters every year.

小 摘要：我国是世界上自然灾害发生频繁、灾害损失较严重的国家之一，每年都因自然灾害而使国民经济和人民生活遭受巨大的负面影响。

Children's Fund estimates 175 million children are affected by war and natural disasters every year.

联合国儿童基金会估计每年有1亿7千5百万儿童受到战争及天然灾害的影响。

In the end the influencing factors and the occurrences of drought disaster are compared and analysed, for example, precipitation, temperature, the El Ninon year, SOI , sunspots, surface runoff low season.

简要对比分析了陕西干旱灾害的影响因子，如降水及气温、厄尔尼诺事件、南方涛动指数、太阳黑子、地表径流等与陕西干旱的关系。

Our technological equipment is rich, including global satellite positioning system GPS, geological radar meter (SIR-20, EKKO), seismograph, infrared detector (NEC-TH9100), ultrasonoscope, building structure diagnose apparatus, proton magnetometer, atomic absorption apparatus, ion chromatograph, gas chromatography, niton survey meter, and etc.

中心拥有各类先进的检测和探查仪器，如：GPS卫星定位仪、全站仪、数字水准仪、美国SIR-20地质雷达仪、加拿大EKKO地质雷达仪、地震仪、NEC红外热像仪、超声波检测仪、质子磁力仪等物探测量仪器，以及原子吸收仪、离子色谱仪、气相色谱仪、氡气探测仪等化学、放射性检测仪器。同时，不断加大对科研经费的投入，引进和开发地质雷达探测、瞬态面波探测、高密度电法等物理探测、远红外成像检测、GPS动静态定位技术、水土环境监测、研发高难度废水处理工艺、地质灾害防治措施及科技考古技术等新方法。

At the beginning of year 2008, most southern areas in China suffered from severe freezing disaster, including northwestward of Fujian province.

08年伊始，我国南方大部分地区遭遇了罕见的冰冻雨雪灾害，闽西北部地区亦如此。

The drought in NW China is one of the main problems of climate disaster of China and global change.

西北地区干旱化是我国气候灾害和全球变化的主要问题之一。

His proposal is to start by using off-the-peg solar systems with associated batteries to do much of the work that diesel generators do in post-calamity situations.

他建议，在后灾害状况下首先用附加电池的现成太阳能系统去承担本应由柴油发电机完成的许多工作。

In this paper, the models for landslide susceptibility mapping are first reviewed, and the principle of two-class and one-class Support Vector Machines is then briefly introduced.

在总结滑坡灾害空间预测研究现状的基础上，简要介绍了两类和单类支持向量机的基本原理。

Conditions of the seepage and stress is a dynamic process, and also shows its interaction and interdependence. Owing to the closure of the fracture, the hydraulic gradient and the permeability pressure of the fracture turn large, and also promote the expansion of water cracks, and fissures connectivity increasing. The increase of the crack opening width will result in the increase of the infiltration capacity and seepage flow, and the reduction of seepage pressure. Because of the dynamic dependence of the fracture aperture, pressure and seepage, under certain conditions, changes in fracture aperture can lead to the formation of local water-passage, and the local emission of high pressure water, and thus promotes the formation of the sudden outgush disasters.

结果表明：洞室开挖完成后，在围岩渗流与应力耦合作用下，围岩中裂隙隙宽、裂隙中水压及其渗透流量的变化是一个动态过程，且相互作用与相互依赖；裂隙的闭合使得结构面水力梯度变大，作用在裂缝上的渗透压力增大，促进导水裂缝扩展，裂隙连通性增加；裂缝张开度增大，渗透能力增强，渗流量增大，其渗流压力相应降低；由于围岩中裂隙隙宽、压力和渗流量的动态依赖性，在一定条件下，裂隙隙宽的改变可导致局部水力通道的形成，高压水头从局部涌出，从而促进突水灾害的形成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。