as for yemen, it is an ungovernable snakepit, home to rival tribes, secessionists and a local branch of al-qaeda.

a mathematical model for groundwater pollution in a leaky aquifer system, which involves the adsorption of semipervious layer, is presented.

提出了一个越流含水层系统考虑弱透水层吸附作用的地下水污染数学模型。

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characteristics of dalbergia hupeana florae in the huangfushan mountain of anhui province

安徽皇甫山黄檀群落植物区系特征分析

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the pteridophyte florae have a close relation to himalayan and tropical asia florae and less close to japan florae;

该蕨类区系与喜马拉雅地区和热带亚洲的关系较密切，而与日本的关系较疏远；

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an analysis on the resemblant relationships between the florae in saur-tarbagatai mountains and surrounding places

萨吾尔-塔尔巴哈台山地与周围植物区系相似关系的分析

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multivariate analysis and environmental interpretation of the florae in malan forest region of the loess plateau

黄土高原马栏林区植物群落的多元分析与环境解释

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comparative analysis on the pteridophyte floral relationships between wulingshan region and its neighboring florae

武陵山地区蕨类植物区系与邻近区系关系的比较研究

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objective to explore the effect of antibiotics on florae in the host.

目的探讨抗生素对宿主体内菌群的影响。

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the pteridophyte florae contain abundant the elements endemic to china and mt.

该蕨类区系具有较丰富的中国特有成分；

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simulated radio altimeter based on step motor and encoder

基于步进电机和编码器的仿真无线电高度表

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lrra low range radio altimeter

低高度无线电高度表

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low range radio altimeter system

低高度无线电高度表系统

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design of automation test system of radio altimeter

无线高度表自动化测试系统的研制

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digital spectrum analysis based on dsp and its applications in radio altimeter

基于DSP的频谱分析方法在弹载无线电高度表中的应用

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automatic test and diagnostic system for radio altimeter

无线电高度表自动测试与诊断系统

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data analysis of static simulating of altitude measuring using radio altimeter

无线电高度表静态模拟测高试验结果分析

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a modularization miniaturized radio altimeter

小型模块化无线电高度表

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reliability evaluation of a radio altimeter

某无线电定高装置可靠性评估

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the navigation and avionics are probably from domestic sources. the navigation system consists of radio altimeter, doppler radar and gps.

导航和电子设备可能来自国内，导航系统包括无线电测高计、多普勒雷达、GPS。

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two husbands might chum up and slip out for a light ale

两位做丈夫的可能结成了好朋友，溜出去喝淡啤酒了。

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two different wavelengths of light ale used als carriers .

采用两个不同的光波波长作为载波。

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