例句與造句

1. O . E . ( 1927 ) and Robinson, T . W . ( 1958 ) on vascular plants in the arid western U . S ., set up certain general types of indicator species, according to level of minimum depth of the water table at which water was at the maximum suction RO.
2. It's difficult to find maximum suction in a sentence. 用maximum suction造句挺難的