Coverage is an important quantitative index for plant community structure.
盖度或者覆盖度是植物群落结构的一个重要数量指标。
Plant condition assessment using remote sensing techniques have been associated with spectral vegetation indices such as the normalized difference vegetation index (NDVI).
用遥感技术进行植物评估可与光谱植被指数联系起来，如规一化差分植被指数NDVI。
Leaf water potential and transpiration velocity of plant is two important physiologic index that reflect water regime of plant.
植物叶水势和蒸腾速率是反映植物水分状况的两个重要生理指标。
Disinfectant allowance and disinfection by-products index according to the water supply plant of the actual use of the disinfectant selection.
消毒剂余量及其消毒副产物指标根据供水厂实际使用的消毒剂进行选择。
Finally, to be determined by the biochemical index of receptor the plant seedling.
最后，对受试植物幼苗的生化指标进行测定。
The selectivity index of different plant species changes with grazing The selectivity index of different plant species changes with grazing seasons and stocking rate.
山羊对各种植物的选择性指数随放牧季节和放牧率的不同而发生变化。
An interference index of population control (IIPC) was constructed to evaluate the effect of plant extracts.
并应用干扰作用控制指数(IIPC)作为评价指标来评价植物抽提物的作用效果。
The species component, density and index of crown cover in the tree layer effect on distribution of illumination and under plants in the plant community.
群落中光照的分布状况受乔木层的种类组成、密度与冠幅指数等因子的影响，且对下层植物分布有较大的作用。
The water physiological index of plant is an important basis that is used to distinguish the drought resistance of plants.
植物水分生理指标，是判别植物抗旱性的重要依据。
The results of landscape index of NDVI patch grades in Thousand Island Lake area reflect the status of the plant communities on them well.
千岛湖区NDVI等级斑块的景观指数计算结果较好地反映了其上分布植物群落状态。
Two kinds of optimization logic model of sintering process are put forward after analyzing the relation of mix ore scheme, process parameters and product quality index of Baoshan iron plant.
在分析宝钢烧结配矿方案、工艺参数以及产质量指标三者相互关系的基础上，提出了两种优化烧结工艺参数的数学逻辑模型。
Taking mixing uniformity as assessment index, the mixing performance and mechanism of adjustable head fall mixer with grids were studied in a plant scale experiment.
以混合均匀度为评价指标，通过生产性试验研究了可调式跌水网格混合器的混合性能及其机理。
This paper does valuably explore on creating index systems, confirming the weights of indexes and establishing the fuzzy comprehensive evaluating model for power plant projects.
该文为适应火电厂工程的要求，在指标体系的建立、指标权重的确定及模糊综合评价模型的建立等方面进行了有益的探索。
The plant species richness index is not positive relevant to species evenness index for which represents the evenness extent of species distribution instead of the quantity of species.
物种丰富度指数与均匀度指数并非存在正相关关系，均匀度指数反映的是物种分布的均匀程度，并不反映其物种数量的多少。
The effect of low-purity PX on the process parameters and technical index of residue oxidation system of PTA plant was described.
阐述了使用低纯度对二甲苯（PX）对PTA装置氧化残渣系统工艺参数、技术指标的影响。
In this article, the impact of coal quality index on boilers safe and economic running of power plant was analyzed and the measures for enhancing the management of coal quality were suggested.
文章从燃煤质量指标对电站锅炉安全经济运行的影响进行分析，并提出加强煤质管理的建议措施。
The plant drought resistance determined by a comprehensive physiological index.
同时表明，抗旱性是一个综合指标。
Boiler efficiency is an important economic index of thermal power plant, and fly ash combustible content is the important factor that influences the boiler efficiency.
锅炉效率是发电厂的一个重要经济指标，而飞灰可燃物含量是影响锅炉效率的重要因素。
Quantitative risk assessment for the gas separation plant is made using the DOW index. According to the results, prevention measures are offered to reduce the hazards further.
运用美国道化学公司危险指数评价法对气体分离装置进行定量化的安全评价，结合评价结果给出采取的对策和措施，以进一步降低危险性。
Chlorophyll content and distribution in plant's leaves is an important index in estimation of plant nutrition information.
植物叶片叶绿素含量及分布是植物营养信息表达的一个重要指标。
Broad heritability of index of plant shape was low both during autumn breeding and during spring breeding.
株型指数在秋、春季的广义遗传力均较低。
Soil, which is the vital important environment factor during plant succession, is the key index of function recovery and maintain of the eco-system.
土壤是植物群落演替过程中重要的环境因子，是生态系统功能恢复与维持的关键指标。
At the late period, plant height, stem diameter and leaf area index of the bio-organic fertilizer treatments were higher than that of the control.
在生长后期，经过生物有机肥处理的株高、茎径和叶面积指数均比对照区高。
Power consumption rate is the important economy examining index of power plant.
厂用电率是发电厂重要的经济考核指标。
Thus, the size of the dry matter rate of leaves is an important physiological biochemical index for evaluating the state of plant growth and the activity of internal metabolism.
因此，叶片干物率的高低是衡量植株生长状况和内部代谢强弱的重要生理生化指标。
There was significant positive correlation among the applied amount of nitrogen, percentage of diseased plant, index of disease and percentage of yield loss.
施氮量、病株率、病情指数、产量损失率间呈极显著正相关。
The length of root is an important index that stands for the plant development level.
而根的长度是根发育水平的一个重要的指标。
Before winter increasing diseased plant rate was the main behavior of the disease development, whereas disease index slowly went up, generally below 5.
冬前病情变化主要表现为病株率的增长，病情指数增长较慢，一般在5以下。
Before winter increasing diseased plant rate was the main behavior of the disease development, whereas disease index slowly went up, generally below 5.
冬前病情变化主要表现为病株率的增长，病情指数增长较慢，一般在5以下。
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