贫瘠

Under the condition of malnutrition, cells will aggregate and grow into fruit bodies.

当营养贫瘠时，细胞聚集发育形成子实体。

If the project is successful, barren stretches of land in Oman may be exploited agriculturally.

如果实验成功，阿曼的贫瘠土地就可以加以利用。

Love your life, Poor as it is. You may perhaps have some pleasant,thrilling, glorious hours,even in a poor-house, The setting sun is reflected from the windows of the almshouse as brightly as from the rich man's abode; the snow melts before its door as early in the spring.

而你富甲天下时，生活显得贫瘠乏味；就是在天堂，挑剔的人总能挑出缺点；虽然贫穷，你也该热爱生活，因为就是在贫济院，你也有自己快乐、幸福与光荣的岁月。

Perhaps the most uplifting moment for Scottish autonomy is the one experienced inside this ancient abbey of Arbroath, where, in 1320; the Declaration of Independence was celebrated, at the instigation of King Robert the Bruce.

苏格兰先民的艰苦劳作与他们自古对这片贫瘠土地的眷恋，在这个博物馆里一览无余。

And yet today it is one of the most barren, arid, and unproductive lands in the world.

但今天﹐它却是世界上最为贫瘠﹐乾旱和不长粮食的地方之一。

The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.And then, the author put fertile soil, which included micro-algae, proportionally into sterile samples and cultivated them respectively under illumination condition (micro-algae can live and reproduce)and dark condition(micro-algae will die in some time).The above indices were measured in 0, 30, 60 and 90days respectively, The analyse of the interrelation between the change of micro-algae"s number and the changes of soil pH value, soil organic matter, soil available phosphorus and soil nitrogen indicated:Soil micro-algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro-algae.Under dark condition,the micro-algae"s number declined gradually and went to zero in the end,while under illumination condition ,on the 90th day, the micro-algaes number of per gramme was 6-7 times more than that of the beginning.

本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究，然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中，分别在光照条件和黑暗条件下进行培养，在0天、30天、60天和90天分别检测以上指标，比较有光条件和无光条件下，即有藻条件和无藻条件下贫瘠土样所发生的变化，并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析，以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。

ROUTE 83, south of Minot, North Dakota, is a particularly barren stretch of a barren state.

北达科他州，密洛特市南部，83号公路沿线，一望无际的是这个贫瘠的州中最贫瘠的土地。

N. A tract of unproductive land, often with a scrubby growth of trees.

贫瘠地，不毛之地：一块贫瘠的土地，通常树木低矮。

By the cluster analysis, 10 grasses were classified into three types—of high barren resistance: Bromus inermis,Festuca arundinacea, Dactylis glomerata; of medium barren resistance: Bromus biebersteinii,Phleum pratense,Phalaris arundinacea; of low barren resistance: Festuca rubra, Agropyron desertorum,Agropyron smithii,Elytrigia elongate.

对10种牧草进行聚类分析，得出耐贫瘠性强的是无芒雀麦、苇状羊茅、鸭茅；耐贫瘠性中等的是草地雀麦、猫尾草、草芦；耐贫瘠性最弱的是紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草。

In order to select a kind of eminent grass which is adaptable to the northern China, the present thesis studies ten kinds of grasses from Gramineae, Bromus biebersteinii,Bromus inermis,Festuca arundinacea ,Festuca rubra,Dactylis glomerata ,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea,and also explores the physiological aspects of their drought resistance, cold tolerance and barren resistance. The drought resistance experiment was conducted to study 10 grasses under water stress during seedling stage by simulating indoor drought environment.

为了能选适应我国北方地区的抗旱、耐寒、耐贫瘠特性的优良牧草，本研究以草地雀麦、无芒雀麦、苇状羊茅、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅、草芦为材料，在抗旱、耐寒和耐贫瘠性特性三方面的生理方面进行了探索研究。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。