Batch fractionating column

batch [bætʃ]

n. 一批;一炉;（食物、药物等的）一批生产的量;成批作业;

fractionating

分馏, 精馏

column ['kɑləm]

n. 纵队，列;圆柱;专栏;

Telephone Mrs. Zaskey at the advertising agency.

打电话给广告代理Zaskey夫人。

The shortest answer is doing.

最简短的回答是做。

The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。