An electronic hygrometer can be used to directly measure the relative humidity over the solution placed in hermetic room without direct measurement of its activity.
电子湿度计可以直接测量溶液上部密闭空间的相对湿度，而不能直接测量溶液的活度。
Methods the relative humidity in the incubators of same type were measured by nurses with the same hygrometer and recorded in the middle ten days of each month.
方法每月中旬由护士用同一个湿度表测量同一类型恒温箱的相对湿度并进行登记。
Methods the relative humidity in the incubators of same type were measured by nurses with the same hygrometer and recorded in the middle ten days of each month.
方法每月中旬由护士用同一个湿度表测量同一类型恒温箱的相对湿度并进行登记。
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