The calibration board in this paper is made from small metal pieces pasted on an organic glassboard.
本文使用在有机玻璃上粘贴正方形金属片的方法制作了一块标定板。
2
This article presents the experimental results concerning the effects of four types of covering layers on the sound absorptive property of a fiber glassboard.
本文通过试验探讨了四种覆面展对玻璃棉板吸声性能的影响。
3
The explosion took place at about 5:30 A.M. I had my face protected by a large board in which a piece of dark welding glass had been inserted.