执行下列程序后,累计暂停进给时间是 ()N1 G91 G00 X120.0 Y80.0N2 G43 Z-32.0 H01N3 G01 Z-21.0 F120N4 G04 P1000N5 G00 Z21.0N6 X30.0 Y-50.0N7 G01 Z-41.0 F120N8 G04 X2.0N9 G49 G00 Z55.0N10 M30
A. 3 秒
B. 2秒
C. 1002 秒
D. 0.002秒
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G91 G01 X3.0 Y4.0 F100执行后,刀具移动了()mm
A. 3
B. 4
C. 5
D. 1
ISO规定绝对尺寸方式的指令为()
A. G90
B. G91
C. G92
D. G93
代表程序结束的辅助功能代码是()
A. M00
B. M02
C. M03
D. M05
Complete the following expressions or sentences by using the Target Words listed below. Change the form if necessary.1. I was able to ________ the data that was deleted by mistake.2. Only the President could ________ the use of the atomic bomb.3. The candidate should be ________ in technical and non-technical writing.4. If a computer user fails to ________ off, the system is accessible to all.5. Subscriber may be an individual or an institution________.6. Earth science relies on software to prepare, ________, access, manipulate and analyze data.7. In case of need we can offer you some other brand of the same ________.8. There must be functions in place to monitor, ________, and manage the application and tenants.9. Older machines will need a software ________ to be loaded to correct the date.10. What are the long-term risks and dangers ________ in this kind of work?11. This site was attacked by a________ last week.12. He smuggled papers out each day, photocopied them, and ________ them back.13. Source code analysis is the only real way to eliminate the ________.14. A cover letter should never exceed one page; often a far shorter letter will ________.15. A determined, malicious user equipped with a network-monitoring tool can ________ user names and passwords.