这对于我国幅员辽阔，地形复杂，多了一种泵型因地制宜的选用。

This is China's vast territory complicated terrain more than a choice of pump in line with local conditions.

youdao

这对于我国幅员辽阔，地形复杂，多了一种泵型因地制宜的选用。

This is China's vast territory complicated terrain more than a choice of pump in line with local conditions.

youdao