environmental alteration
environmental alteration 双语例句
The results show that river health indicators are reflected in some extent during the process of baseline survey and success criteria setting among the river regulation planning in Shanghai. While there are certain deficiencies in river condition evaluation, setting of management objective and post-evaluation procedure, attention should be paid to the development of river health assessment from the start of rivrer management planning. The river health assessment of Liwa stream reveals that it is in a poor condition. Specific issues include: the alteration of natural hydrological condition, degradation of water quality, loss of biotic integrity, and modification of physical form. Its high time to introduce river health assessment for tracking changes or trends of river condition and selecting effective management strategies. Post-evaluation on the benefits of Zhangjiabang Creek regulation shows that the water quality, aquatic community and riverine vegetation are improved and great ecological and environmental benefits are demonstrated. But from the angle of river health, there are some problems in water quality, physical form and management strategies. Thus, the whole process of river health assessment should be adopted as a new tool to improve the effectiveness of river management.
实证研究结果表明：(1)上海地区河道整治项目规划在现状调查、整治目标设定等环节初步体现了对河流健康状况的关注，但在现状评价、管理目标设定以及后评估程序设置等方面仍有所欠缺，今后应聚焦于从规划源头开始将河流健康状况贯穿于现状调查与评价、目标设定、后评估等河流管理的全过程；(2)以丽娃河为对象的河流健康状况现状评估及问题诊断结果显示，水文条件不佳、水质黑臭、河流生物缺乏以及河流形态改造严重等正在成为制约河流生态系统的重要因素，急需从河流生态系统健康视角剖析存在问题，并选择合理有效的河流整治措施；(3)基于河流健康状况评估方法的河道整治后评估结果显示，张家浜综合整治使得河流水文、水质以及河岸带状况有所改善，体现了较好的生态环境效益，但从河流健康状况角度而言，河流水质、河流形态、管理措施等方面仍存在一定的不足，全过程的河流健康状况评价应被视为改进河道整治项目有效性的崭新手段。
Alteration of nutrition as means to reduce environmental pollution by pigs.
不同赖氨酸蛋白比例对肥育猪氮利用效率的影响。
So probably the alteration of the weak-to-strong environmental condition field is the important reason for causing the track's mutation of typhoon 9806.
强弱环境场的更替，可能是9806号台风移向突变的重要原因。
In this system, every node of P2P network has one immune intellectual body which can study and change dynamically according to its environmental alteration. The body can detect DoS attacks automatically and control the data which have the characteristics of attacks.
在系统中，对等网每个节点都有一个可根据环境学习和动态改变的免疫智能体，它能够自动检测网络并对具有DoS攻击特征的数据进行控制，从而把攻击扼杀在萌芽状态。
Current environmental trends suggest that human alteration of habitats is at fault.
由目前的环境变化趋势可以得知，「人类对栖境的改变」必须负起责任。
These signal molecules exhibit their effects by binding to cellular receptors after which their message (or signal) gets transduced to the nucleus of the cell, where specific genes are activated in response to the alteration in the environmental conditions.
这些信号分子通过与细胞受体结合发挥作用，将信息传导到细胞核中，在那里特殊基因由于外界环境变化而被激活。
environmental alteration
相关单词辨析
fluctuate: 没有规律的上下波动
alteration: 强调细节的变化
change: 强调某种本质的变化
modify: “更改，修改”程度略小并有趋缓之意
convert: 用途上的改变，也作态度和信仰的变化
shift（in）: 转换，转变
alternation: 轮流，交替（take turn）
alter: 细枝末节的修改，而非脱胎换骨
variations: 指不规则的或断续的改变，或指一种东西改成了不同样式