例句與造句

1. "' B16.29 "'- " "'Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings  DWV . " " "'This standard for wrought copper and wrought copper alloy solder-joint drainage fittings, designed for use with copper drainage tube conforming to ASTM B-306, covers description, pitch ( slope ), abbreviations for end connections, sizes and method of designating openings for reducing fittings, marking, material and dimensions and tolerances ."
2. It's difficult to find reducing fitting in a sentence. 用reducing fitting造句挺難的