结果表明，纯表头比对方法不可取，可用介质对流量分区段检定。
Results show that the method of table item comparison is not advisable and flow rate can be calibrated at intervals by means of media.
对于腐蚀性最弱的化学物质、湿的或干的有机酸、醇以及酮等流体介质，一般来说纯树脂橡胶表现还是好的。
Pure Gum Rubber is generally good for most weak chemicals, wet or dry organic acids, alcohols, and ketones.
提出了以高氯酸为催化剂，分析纯乙酸乙酯为介质，乙酰化法测定伯、仲醇的实验条件，实现了对经典方法的改进，简化了操作程。
The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.
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