When fitting a piece of pipe, how do you determine the exact position on board a ship?

当安装一管件时，你怎样决定管件在船上的确切位置？

youdao

When fitting a piece of pipe, how do you determine the exact position on board a ship?

当安装一管件时，你怎样决定管件在船上的确切位置？

youdao