I'm going to check your background knowledge.

我要检验一下除夜家的背景知识。

Product Safety and EMC and environment background knowledge.

产品安全，电磁兼容及气候环境条件的基本知识。

No background knowledge is required to read the rest of this article.

阅读本文后面的内容并不需要背景知识。

Activate background knowledge to build predictions and expectations.

启动背景知识以建立预测和期望。

The cultural background knowledge plays an important role in the reading.

文化背景知识在阅读中起着非常重要的作用。