1·According to the requirements of the customers and the scale, multi gas feed modes such as gas supplied by pipeline, LNG Dewar Bottle and CNG Steel Bottle will be provided.
根据客户需求及规模，公司可向用户提供管道供气、LNG杜瓦瓶以及CNG钢瓶等多种供气模式。
2·A device for determining molar mass with freezing point depression was improved, which consists of the Dewar bottle, sample container, Beckmann thermometer, and motor stirrer.
介绍一个改进的凝固点下降法测定摩尔质量实验装置，它由保温瓶、凝固点杯、贝克曼温度计、电动搅拌器等几部分构成。