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1)  Endogenous influence
内生影响
2)  internal force influence
内力影响
3)  ecological impact
生态影响
1.
Research on the ecological impact assessment of Taihu Lake affected by basin s society and economy based on fuzzy comprehensive evaluation;
基于模糊综合评价的流域社会经济活动对太湖生态影响评价研究
2.
Temporal and Spatial Dynamic Variation of Groundwater and Ecological Impact Research of Fukang;
阜康市地下水时空动态变化及生态影响研究
3.
Countermeasures of Ecological Impact For Ying-Rui Expressway
鹰瑞高速公路生态影响的优化对策
4)  ecological influence
生态影响
1.
The landscape evolvement and its ecological influence in Lanzhou recent 50 a;
50年来兰州市景观演变及生态影响
2.
On the basis of the analysis of the ecological influences on the tourism zone which are brought about by the tourism developing constructions and activities,the management methods of the"things"and"people"relating to tourism are discussed.
在分析旅游开发建设和旅游活动对旅游地产生的生态影响的基础上,探讨了对与旅游相关的物和人的管理方法,期望通过有效的生态管理措施来减少和调控旅游活动产生的不利生态影响,以保护旅游资源,使之得到可持续发展。
5)  ecological effects
生态影响
1.
The ecological effects of biological invasions on birds;
生物入侵对鸟类的生态影响
2.
The ecological effects and sustainability of the project attract great attention.
改善生态环境是我国退耕还林工程的核心目标,工程建设的生态影响与可持续性备受关注,对工程进行全面、客观的生态影响评估尤为重要。
3.
In order to probe into the ecological effects of mercury in typical mercury contaminated area, and the influence and the assessment of the pollution on the health of local citizen, and the molecular mechanism of neurotoxicity of mercury, this paper studied the environmental medium and food chain in Wanshan mercury mining area.
为探讨典型汞污染地区汞的生态影响、汞污染对当地居民健康的影响和危害评价以及汞神经毒性分子机制,对我国贵州万山汞矿环境介质和食物链进行了调查,并应用万山和清镇两地实验田生产粮食对大鼠进行暴露。
6)  physiological effect
生理影响
1.
The physiological effects of different ratios of NO~--3-N to Urea-N(1∶0,2∶1,1∶1,1∶2) on Vallisneria atans were investigated under eutropic nutrient condition in static laboratory experiment.
2 mg/L)不同比例硝态氮(NO3-_N)和尿素氮(Urea_N)(1∶0,2∶1,1∶1,1∶2)对苦草(Vallisneria atans)的生理影响。
2.
This paper introduced the magnitude of the EMF in the neighborhood of extra - high - tension equipments and transmission lines and then, the tests and investigations about the physiological effect on human body by the alternating electromagnetic field (EMF).
介绍高压输电线路及电气设备附近电磁场量值的大小和交变电磁场对人体生理影响的试验及调查研究结果,其结论是现有的和将来计划建设的工业设施所产生的电磁场,对人体不会产生危害健康的、不可恢复的生物生理影响。
补充资料:-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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