干旱

The landform of this area is a thpyical erosional and depositional topography of semiarid one.

这个地区是一种典型的半干旱地区的腐蚀和沉积地形。

The study was to give a technique support for the plant of special maize in semiarid area.

为半干旱地区特用玉米种植提供技术支撑。

Otindag Sandland is one of the main sandlands and among the most seriously desertificated region in semiarid area of China.

浑善达克沙地是我国北方干旱半干旱区的主要沙地和严重荒漠化地区之一。

More than 100 species: arid and semiarid regions of N Africa, C, N, and W Asia, Australia, S Europe; 19 species in China.

超过100种：非洲北部，C，N 和W亚洲，澳大利亚，S欧洲的干旱和半旱的地区；中国有19种(2特有种)。

NDWI and MNDWI can not distinguish the semidry watercourse from the noise in semi-arid regions.

利用NDWI和MNDWI提取半干旱地区水系，无法有效的区分水系内的半干涸河道与背景噪音。

It is a megadepression evolving from a Mesozoic back-arc paraforeland basin to a Cenozoic intermountain basin, and filled with large sets of argillaceous rock, calcareous mudstone, carbonate rock and clastic rock of saliniferous-semisaliniferous environment under the semidry climate of inland lakes which form a set of giant-thick hydrocarbon source rock with two periods of hydrocarbon-expulsion peaks, two types of reservoir series as well as special capping and migration conditions.

是一个由中生代弧后准前陆盆地向新生代山间盆地发展演化的一个大型坳陷。充填了内陆湖泊半干旱气候下咸化环境－半咸化环境的大套泥质岩，含钙质泥岩及碳酸盐岩和碎屑岩。形成一套巨厚的具两期排烃高峰的烃源岩，两种类型的储集岩系、特殊的盖层条件及运移条件。

Area 1 block B in Saudi, is in the semitropical climate and has the complex geological condition and topography.

沙特阿拉伯探区属于典型的亚热带干旱地区，具有复杂的地表及地下地质条件。

Sprawling shrubby perennial noted for its scarlet black-marked flowers; widely distributed in dry parts of Australia.

一种曼生的多年生灌木，以猩红色饰有黑斑点的花而著称；在澳大利亚的干旱地区广泛分布。

Type and sole genus of Ephedraceae: tropical and subtropical evergreen shrubby or creeping plants native to dry and inhospitable regions.

麻黄科的唯一的模式属；热带和亚热带常绿灌木或蔓生植物，生长于干旱荒凉的地区。

The experiments with water as only limiting factor was designed to study the dynamics of size inequality in spring wheat ( Triticum aestivum L.)populations and its theoretical basis.Of the three densitywheat populations,the skew of weight distribution of wheat plants increase with time,and the increase rate is the highest in high density population.

在黄土高原半干旱生态条件下设置了低、中、高3个密度梯度的以水为限制因子的实验，各密度种群个体重量分布偏倚度随时间的延续而增大，增大的幅度随密度增高而上升。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。