catarrhal造句

Only fragmentary information on pathogenesis of bovine malignant catarrhal fever is availible.
关于牛恶性卡他热的病理发生,仅能获得一些零星的资料.

The diagnosis is usually not made until the end of the catarrhal stage.
诊断通常在卡他期终了前尚不能作出.