For simple assemblies, the number of boards with these problems is small, so many companies pass the boards on to final assembly without a functional test.

对于简单的装配而言，电路板虽然存在这样的问题，但是数量少，所以很多公司在最后的装配过程中没有对电路板进行功能测试。

youdao

It also assembles ERJ-145s in an Embraer joint venture, with the Harbin production lines reportedly switching to final assembly of Embraer Legacy business jets in several months.

FORBES: Name You Need to Know: Aviation Industry Corporation of China (AVIC)

Since production began in November 1971, 2, 934 wing sets have been manufactured and delivered for the European Airbus consortium to the final assembly lines in France and Germany.

BBC: Airbus warns of 1,300 job losses

The team also toured the Ford Rouge Factory, to see the final assembly process for the Ford F-150 truck.

WHITEHOUSE: Winning High-School Students Drive Dashboard Design