The theoretical plate number "n" of distillation towers is an important data for distil - lation tower design.
化学工程中精馏塔的理论塔板数n是塔器设计的一个重要数据。
A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.
从雄甾二酮的转化产生菌偶发分枝杆菌MF2出发，经紫外诱变结合平板筛选，获得一株主要转化生产睾酮的突变株T S-N-1 21。
The identification of Radix scutellariae was silica gel G plate, n-butanol-glacial acetic acid-water(7:1:2) as the development reagent, chloride ferric(1%) as color developing reagent.
后者黄芩的鉴别：硅胶G薄层板，正丁醇-冰乙酸-水（7：1：2）为展开剂，1%三氯化铁乙醇溶液为显色剂；
Buoy 46407 on the Juan de Fuca Plate border shows choppy water, as did Buoy 44401 on the edge of the N American Plate in the Atlantic.
胡安德富卡板块边界的浮标46407显示了有浪的水面，正如大西洋中的北美洲板块边缘的浮标44401显示的那样。
N. B. The using temperature of bricks should not exceed the experimental temperature of Linear Change after Heating. The above Heat-Conduction Coefficent is obtained by using flat-plate method.
本试验方法适用于电热合金随温度变化的测量，亦可用于超过电热合金使用温度范围的情况。
N. B. The using temperature of bricks should not exceed the experimental temperature of Linear Change after Heating. The above Heat-Conduction Coefficent is obtained by using flat-plate method.
本试验方法适用于电热合金随温度变化的测量，亦可用于超过电热合金使用温度范围的情况。
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