例句與造句

1. In hydraulic systems, the flow rate of the fluid may be considered as a through variable, and the pressure causing the flow may be the across variable .
   在水利學(xué)系統(tǒng)中，流體的流速可考慮作流通變量，而引起流動的壓力可考慮作跨接變量。
2. It's difficult to find across variable in a sentence. 用across variable造句挺難的