在配制培养基时,为准确计算加水量,我们推导出下列计算公式。设:R—培养基的设计含水量;W_1—干料重(包括本身含水量);r_1—干料本身的含水量百分率(用干燥法测得);B_1—干料所含的总水量;X_1—达到设计含水量时,应加入的水量。 In formulating the medium, we derive the following formula to accurately calculate the amount of water added. Design: R-design of the water content of the medium; W_1-dry weight (including its own water content); r_1-dry material itself, the percentage of water content (measured by the drying method); B_1- X_1 - Amount of water that should be added when the designed water content is reached.