文摘

zài měi piān zhāi yào de kāi tóu shì gōng chéng suǒ yǐn nián kān de wén zhāi hào

在每篇摘要的开头，是工程索引年刊的文摘号。

The Engineering Index Annual abstract number is found at the beginning of each abstract.

wén zhāi xìn xī liàng

文摘信息量

volume of abstracts information