2. The instrument can
confect continuously the multiple gas concentration and can be adjusted continuously.
该系统可连续配制、并供给浓度值连续可调的多元混合标准气体。
3. Objective:To know content of sulfur dioxide and Confect product of dried lily and apricot meat to give reasonable suggestions.
目的:对送检的百合干、杏肉等蜜饯制品进行亚硫酸盐检测,以了解其二氧化硫含量,并提出合理建议。