1. We ordered 200 vacuum flasks at the unit price of US $ 20.
我们订购了200个暖水瓶，单价20美元。
2. Some Factors Influencing Total Silver Expenditure in Vacuum Flasks Silvering
影响保温瓶总银耗的因素
3. Flask of glass for domestic use (excl. vacuum flasks and leather-covered flasks)
家用玻璃长颈瓶（不包括保温瓶和皮革包覆的长颈瓶）
4. In the industrial town of Kunshan, thermos, the manufacturer of vacuum flasks, is among the lucky few.
在昆山工业城，保温瓶制造商膳魔师（thermos）是为数不多的幸运儿之一。
5. Some practical problems arising from the measuring process of the silver-films of vacuum flasks are discussed.
探讨了若干实际测量保温瓶瓶胆银层厚度时出现的问题。
1. Water came from a giant plastic barrel by the door, and was heated in vacuum flasks with an immersion heater.