ibm 740造句

例句与造句

1. The IBM 740 Cathode Ray Tube Output Recorder was also available, which was a 21-inch vector display with a very long phosphor persistence time of 20 seconds for human viewing, together with a 7-inch display receiving the same signal as the larger display but with a fast-decaying phosphor brightness designed to be photographed with an attached camera.
2. It's difficult to find ibm 740 in a sentence. 用ibm 740造句挺难的