25.040.40;01.080.40 标准查询与下载

ANSI/ISA S5.1-1984 仪表符号及识别

Instrumentation Symbols and Identification

BS 3238-2:1964 伺服机构零件图形符号.第2部分:普通伺服机构

Symbols for terms defined in BS 1523:Section 5. Those for circuit diagrams where all inter-connections of servo-mechanisms are given, those for block diagrams, e.g. to facilitate explanation of system.

Graphical symbols for components of servo-mechanisms - General servo-mechanisms