戏曲曲式所有的一种板式，只念不唱，有节奏，以板击拍伴奏，念词的句式和韵脚与唱词基本相同，篇幅长短不定，在戏曲中一般由丑角使用，有时在唱段中也夹用数板，之后再接唱腔。 岭南地区称这种数板为数白览。
血球计数板 blood counting chamber ; Hemocytometer ; counting chamber
血小板计数板 platelet chamber ; blood platelet counting plate
计数板 counting chamber ; Neubauer ; counting slide
细胞计数板 cell counting chamber ; Fuchs-Rosenthal Counting Chamber
血细胞计数板 blood cell counting plate
虫卵计数板 McMaster Egg Slide Counting Chamber
面板数据 Panel data
数位板 digitizer ; graphics tablet
结果表明精馏塔2（理论塔板数为30）的精馏效果远优于精馏塔1（理论塔板数为20）。
The results indicated that the efficiency of column 2 with 30 theoretical plates was more excellent than that of column 1 with 20 theoretical plates.
塔板数和塔盘开孔率偏低，使乙腈回收率低、处理能力小。
Moreover, fewer plate number and low perforation area lead to low acetonitrile recovery rate and treatment capacity.
结果表明，加入合适的萃取剂可有效地提高旋光性戊醇对异戊醇的相对挥发度，减少分离所需的理论板数。
The results showed that addition of appropriate extracting solvent could increase the relative volatility of active amyl alcohol and decrease the number of theoretical plates.
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