表面紧密 meaning in Chinese
closed-up surface
Examples
- 1 enject ethanol or acetone about 25mm to the dew - point meter container , then put in dry ice to refrigerate and keep the centigrade up to or lower than - 40
2将试样水平放置,在上面涂一层乙醇或丙酮。使露点仪与该表面紧密接触,停留时间按表4的规定。