包括全年季节性通航累计三个月以上的航道，不包括仅供零散流放竹、木排的河道。

It includes the channels open to navigation for over an accumulative 3 months in a year, yet this does not include the river courses, which are only used to float odd logs and bamboo rafts.

youdao

包括全年季节性通航累计三个月以上的航道，不包括仅供零散流放竹、木排的河道。

It includes the channels open to navigation for over an accumulative 3 months in a year, yet this does not include the river courses, which are only used to float odd logs and bamboo rafts.

youdao