timer n. 1.时计,跑表。 2.记时员。 3.定时继电器;程序调节器,定时(延迟)调节器,定时装置,自动定时仪。 4.(内燃机的)发火定时器。 5.(汽车的)时速表。 6.按时计酬的工人。 a first timer in the office 初次到职工作的人。 a half timer 〔英国〕半工半读的学龄儿童。 an old timer 〔美国〕老资格,老手;守旧的人。
precision n. 精密,精确性;严格;精密度;【修辞学】精确。 arms of precision 装有瞄准仪的枪炮。 adj. 精确的,精密的。 precision apparatus 精密仪器。 a precision balance 精密天平。 a precision fire 准确射击。
From our experiments , we conclude that this implementation may satisfy the requirement in real - time to some degree . secondly , we do much research on the design and implementation of the software based on real - time operating system ( rtos ) qnx . we also study the detailed technologies , which include the using of high precision timer , mapping of memory , buffering of data , and realizing of gui 论文详细阐述了在qnx平台上开发该实时软件的相关技术,其中包括使用高精度定时器获得好的系统实时性、使用内存映射读取采集数据、采用适量缓冲区提高存盘效率、以及利用qnx提供微图形界面( microgui )工具实现系统图形界面等。
The paper integrates the characteristic windows9x , the characteristic virtual device drive and the characteristic number control system . it analyses several important questions of tapping the number control system and realizing the open number control system under the windows9x circumstance , which are the number control system software structure , the choice and check of the high precision timer under the windows9x operation system , the virtual device driver appliance of the number control system software , and the open number control software implement based on the com 论文结合windows操作系统的特性、虚拟设备驱动程序以及数控系统软件的特点,分析了在windows9x环境下开发数控软件和实现开放式数控系统的几个重要问题:数控系统软件结构、高精度的定时器在windows9x操作系统下的选取与考核、虚拟设备驱动程序在数控系统软件中的应用以及基于com组件的开放式数控软件实施方案。