1、Numerical control is designed to control the operation of a machine tool by a series of coded instructions called a program.
A、对
B、错
2、A part program is stored in the form of blocks of information, and each block has the numerical data needed to manufacture a segment of the work-piece.
A、对
B、错
3、Like a conventional machine tool, the NC system can’t replace the manual actions of the operator either.
A、对
B、错
4、数字模拟转换器的英语全称是
A、Analog Digital Converter
B、Digital Analog Converter
C、Central Processing Unit
D、Basic Revolution Unit
5、模拟数字转换器的英语缩写是________
A、APT
B、DDT
C、DDC
D、ADC
