例185.如图8-1所示,轮板零件的加工,毛坯用压板固定在机床工作台面上,材料为铝合 金,要求加工外轮廓和内孔,加工深度5m(粗加工)。 0176 N10 G55 LF TO1 DO1 MO6 LI G90S1000M03LF

一、二次设备的选择 1、二次回路保护设备的选择 1)熔断器的配置 A、控制和保护回路熔断器的配置 同一安装单位的控制、保护和自动装置一般合用一组熔断器。 当一个安装单位内只有一台断路器时(如5kV或110kV出线),只装一组熔断器

一、物质世界的空间尺度—宇宙的42个台

微生物生物量碳测定方法 (1)试剂配制: 0.5MK2SO4溶液:称取K2SO4174.33g溶解于蒸馏水中,搅拌溶解,(可加热)定容 至2L 去乙醇氯仿的配制:在通风柜中,量取100毫升氯仿至500毫升的分液漏斗中,加 入200毫升的蒸馏水,加塞,上下振荡10下,打开塞子放气,而后加塞再振荡10下, 反复3次,将分液漏斗置于铁架台上,静止溶液分层,打开分液漏斗下端的阀,将下层 溶液(氯仿)放入200毫升的烧杯中,将剩余的溶液倒入水槽,用自来水冲洗。再将烧 杯中的氯仿倒入分液漏斗中,反复3次

CONTENTS BRIEF HISTORY PROTOCOLS AND STANDARDS STANDARDS ORGANIZATIONS INTERNET STANDARDS INTERNET ADMINISTRATION CSIE, NTUT, TAIWAN

CONTENTS TCP SERVICES NUMBERING BYTES FLOW CONTROL SILLY WINDOW SYNDROME ERROR CONTROL TCP TIMERS CONGESTION CONTROL SEGMENT OPTIONS CHECKSUM

Introduction Loosely specified protocol software interface Interface functionality Conceptual interface specification · System calls Two basic approaches to network communication Basic I/ functions in Linux

Introduction Single thread for multiple transport protocols Motivation Server design and process structure An iterative example Concurrent multiprotocol servers

Conceptual Server Algorithm Simple Server Algorithm Create a socket Bind the socket to the port Enter an infinite loop Accept request Process request Reply request Not enough in practice generally

Multiple Threads Master thread for connection requests Slave threads for handling communication with clients Thread of execution: an abstraction of independent computation Single process can contain one or more threads CSIE, NTUT, Taiwan