virtual record

Using the advanced virtual instrument technique in the detect-control domain, the lab equipment is rebuilt as a integrated automatic system of data Acquisition, data record, data print and teaching management.

应用当今测控系统中较为先进的虚拟仪器技术，使实验台成为集数据采集、数据记录、数据显示、图形绘制、数据打印和实验教学管理等多功能为一体的自动化教学实验系统。

Prices of the virtual currency bitcoin fell as much as 38% Wednesday and are now down more than 50% from the record high hit two weeks ago amid worries that China is moving to block the purchase and use of the currency by its citizens.

虚拟货币比特币的价格周三跌幅一度高达38%，目前已经较两周前触及的纪录高点回落了逾50%，因市场担忧中国将阻止居民购买和使用比特币。

Using technologies about metadata in the Virtual Observatory, a reasonable mechanism for building the gateway is discussed, including resource registry and discovery, metadata record creating, metadata database managing, resources querying, etc.

初步设想了结合元数据描述方法，利用虚拟天文台的资源注册和发现机制、元数据记录自动生成机制、元数据集管理机制以及对元数据所标记的资源的查询机制来建设天文教育门户；

Firewalls and virtual private network gateways record traffic deemed suspicious.

防火墙和虚拟专网网关记录被认为是可疑的流量.