1) action frequency of tourist
旅游发生频率
2) Frequency
[英]['fri:kwənsi] [美]['frikwənsɪ]
发生频率
1.
The Frequency of Late Frost Injury and Its Preventing Method in Wheat Planted Area in Huanghuai;
黄淮麦区晚霜冻发生频率及防御措施
2.
Influence of landscapes on the frequency and intensity of urban heat island;
功能区对热岛发生频率及其强度的影响
3.
Frequency of hypoglycemia in the elder with insulin-treated type 2 diabetes;
老年2型糖尿病患者胰岛素治疗后低血糖症发生频率的观察
4) eco-efficiency of tourism
旅游生态效率
5) ecotourism development
生态旅游开发
1.
The research reviews the researches on ecotourism development for the aero anion resources,measures and analyses aero anion density of Beishan National Forest Park in Qinghai province.
回顾空气负离子资源生态旅游开发的研究进展,并测定和分析了青海北山国家森林公园的空气负离子浓度。
2.
On the discussion of the concept and intension of ecotourism, and according to microeconomics ,combining status in quo of Chinese tourism, this article analyzes the externality diseconomy of ecotourism development and two institutional roots——market failureand government restrict failure.
在论述生态旅游的概念和内涵基础上,从微观经济学出发,结合我国旅游现状进行分析,指出生态旅游开发中的外部不经济性,并进行市场失灵和政府干预失灵的根源分析。
3.
This paper study ecotourism development and management in Mt.
本文针对峨眉山丰富的自然生态旅游资源,利用生态旅游开发管理所依据的主要理论之一——景观生态学(LE)理论,对峨眉山的生态旅游开发与管理进行了研究。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条