1) reciprocating activity
往返活动性
2) cyclic ground motion
往返运动
1.
Mechanism of pile foundation response in liquefiable soils under seismic cyclic ground motion;
地面横向往返运动下可液化土层中桩基响应机理
3) communication activity
交往活动
1.
Based on the trend of the aging population and our nations particular service system for the aged, this paper presents such opinions as the public building disposition, environment design and the communication activity system of the residential belt meeting the requirement of the aging population, etc.
分析了人口老龄化发展趋势，及我国特有的养老服务体系，对适合人口老龄化的居住区公建配置、环境设计、交往活动系统阐述了见解。
4) round delay variation
往返时延抖动
1.
In order to reduce the limits of time synchronization and cooperation between nodes in topology inference based on one way delay,a topology inference algorithm based on round delay variation is proposed.
为了克服基于端到端单向时延的拓扑推断需要时钟同步及节点间合作的限制,提出了一种利用往返时延抖动的拓扑推断算法。
6) social activities and communication
社会性活动和交往
1.
He summarizes the law of moral education practice and ways to optimize moral education process in social activities and communication.
他把集体生活、教育活动、家庭生活作为德育的调节场和德行的践履地,并总结出在社会性活动和交往中实施德育的规律和优化德育过程的方法。
补充资料：南美洲运动会和南十字运动会
1922年在巴西举行过1届南美洲运动会,参加者限于南美洲国家。1978年在玻利维亚举行过 1届南十字运动会，参加国有阿根廷、玻利维亚、巴西、智利、厄瓜多尔、巴拉圭、秘鲁和乌拉圭8国。
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