Sooty blotch has become one of the most important diseases on many ornamental plants.

實(shí)踐證明煤污病是園林植物的一類重要病害.

But there had no blotch in negative control.

而陰性(空白)對照則相對應(yīng)位置上無斑點(diǎn).

In this paper , the occurrence of watermelon bacterial fruit blotch was first reported in Jilin province.

首次報(bào)道了西瓜細(xì)菌性果斑病在吉林省的發(fā)生.

Far below, the railroad yard squealed, a small busy blotch on the ancient silent desert.

遠(yuǎn)在山下, 鐵路停車場里還在嗚嗚作響,發(fā)出鏗鏘的聲音,在這片古老 、 沉寂的沙漠中只是一個(gè)忙忙碌碌的小斑點(diǎn).

His face was covered in ugly red blotch es.

他臉上有許多難看的紅色大斑點(diǎn).