off-channel reservoir的用法和樣例：
例句
- The deposition of sediment in channels decreases the channel capacity and the flood-carrying capacity.
泥沙淤積在河道內，減少了河槽容量和泄洪能力。 - It is likely that the construction of the reservoir project will change the whole south passage to a new type watercourse suitable for water and sediment passing.
而蓄淡水庫工程建設將有可能使南槽成為適應進出水沙量的新型河槽。
