例句與造句

1. The line was never profitable : the coefficient of use fell to 0.32 in 1907 and passenger numbers fell to from the previously.
2. The service modifications lowered operating expenses, but the coefficient of use went down dramatically : 0.33 for the first ten months of 1908.
3. The first months'service did not meet Hulin's expectations; passenger numbers were much lower than expected, the coefficient of use was catastrophic : 0.39 . by electromotive traction.
4. It's difficult to find coefficient of use in a sentence. 用coefficient of use造句挺難的