Currently in initial production , the off - axis viewing device （ oavd ） is a small viewing unit that mates with a weapon s existing receive - mounted optical sight and provides an image of the target transmitted through the scope and reflected 50 to the line - of - sight back to the firer 目前，初期生产的离轴式观察装置（ oavd ）是一种与装在支座上的光学瞄准具相配的小型观察器，它能将透过物镜的目标图像折射50到视线方向，再提供给射手。
Sponsored by the national natural science foundation under the national key project “ the modern method and system for remote pseudo dynamic testing of structures under earthquake simulation ” ( 50338020 ) , some studies on the method for remotely collaborative hybrid dynamic testing of substructures and structural elements have been carried out in this thesis . the main research achievements are summarized as followings : based on the network communication platform netslab ( networked structural laboratories ) developed by the research group , the rational framework of a platform for remote pseudo dynamic testing applications of substructures and structural elements is proposed and a robust standardized platform entitled netslab - sdof has been developed for remotely collaborative hybrid dynamic testing of single story structures with visual basic program language 本文结合国家自然科学重点资助课题“现代结构拟动力地震模拟协同试验方法与系统” ( 50338020 ) ,对结构远程协同拟动力试验方法进行了研究,主要成果如下:基于课题组开发的网络平台netslab ,搭建了结构远程协同拟动力试验平台的构架,采用visualbasic语言开发了一个标准化的开放式单层结构远程协同拟动力试验平台netslab - sdof ,它由控制中心、真实试验机、虚拟试验机和远程观察器四个模块组成。
For example , if you use the file system watcher event provider or a similar provider that reads event data dropped to a folder , you must make sure that the engine is able to read files dropped to that folder , that authorized users and applications can drop files to that folder , but that no malicious users can read or write files in that folder 例如，如果使用文件系统观察器事件提供程序或类似的提供程序（可读取已放到某个文件夹的事件数据） ，则必须确保该引擎能够读取已放到该文件夹的文件，并确保经授权的用户和应用程序可将文件放到该文件夹中，但是恶意用户无法读写该文件夹中的文件。
In addition , a process diagram contains other non - reusable elements , which you can drag and drop from a palette , such as processes , tasks , repositories , start stop end nodes , connections , forks , joins , loops , maps , decisions , notification broadcasters , notification receivers , observers , timers , and annotations 另外，流程图包含其它不可重用的元素，您可以从调板上进行拖放，比如流程、任务、存储库、开始/停止/结束节点、连接、分叉、结合、循环、决策、通知广播器、通知接收器、观察器、计时器和注释。
