覆盖率

On the other side, the forest cover percent is only about 14 in our country and forest cover per person is only 13 percent of world average level.

另一方面，森林覆盖率低，仅占国土总面积的14%，而人均森林面积只有世界人均面积的13%。

Here, forest cover has fallen from nearly 54 per cent to just over 48.5 per cent.

在这里，森林覆盖率已从近百分之五十四，刚刚超过百分之48.5 。

Its forest cover rate is about 13.4%.

森林覆盖率约为13.4%。

China has committed to a target of 20% forest cover by 2010, and tree planting has been actively encouraged.

中国在大力鼓励植树造林，以期在2010年使森林覆盖率达到20%。

Bamboo is very rich in resources, forest cover 73 percent, the UNESCO as "magical oasis."

竹木资源十分丰富，森林覆盖率73%，被联合国教科文组织誉为&神奇的绿洲&。

However, with low forest cover, soil erosion is more serious.

但森林覆盖率低，水土流失较为严重。

Increasing the forest cover rate is the key of improving the climate of this district.

改善环境，拯救珍稀野生动物提高森林覆盖率是改善这个地区气候的关键。

In order to add a CMOS sensor cleaner, the frame coverage is down to 90%.

要添加一个CMOS传感器清洁的画面覆盖率下降到90％。

In different degree of saline and alkali conditions controlled in lab or under field, contents as followed were determined: the absorption, transportation and distribution of major cations Na~+, K~+, Ca~(2+and Mg~(2+) in indicator plant; organic solute, and antioxidase activities, including superoxide dismutase, catalase and peroxidase POD characteristics of individual, population and community of the plant. Responses of the indicator plant to environment from physiological to community aspects were systemically discussed in this document.(1 Vegetional characteristics and edaphic indicators including bare patch index, dry biomass, percent cover by perennial plants, growth indicators of Leymus chinensis, soil organic matter and pH were sensitive to saline-alkali grassland degeneration.

运用室内控制和野外试验相结合的方法，调查和测定在不同土壤盐碱条件、不同季节里，主要元素Na~+、K~+、Ca~(2+)、Mg~(2+)在植物体内吸收、运输和分布的变化状况；研究不同土壤离子浓度下，指示植物体内渗透调节物质——脯氨酸和糖类、超氧化物歧化酶、过氧化物酶和过氧化氢酶活性等指标的变化响应情况；研究不同盐碱梯度下，植物个体、种群、群落的特征；系统的从生理生态角度探讨指示植物对盐碱环境的响应：(1)植被特征指标：裸地指数、生物量、多年生植物覆盖率；羊草生长状况指标：土壤有机质含量、pH可作为松嫩平原退化评价的指标。

High percentage distribution of GC-rich repeats of SINEs explain high GC genomic region at 3p25.1 and high concentration of AT-rich repeats of LINEs at 3p26.1 lead to low GC content of the region. Our results suggest isochore structure is the result of coevolution between gene and genome.

同时发现：GC-rich的SINE类重复顺序在GC含量较高的区域有较高的覆盖率，相反AT-rich的LINE类重复顺序在GC较低的区域分布较多，基因分布与基因组这一关系的形成是基因与基因组长期共进化的结果。

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。