gradient of a line造句

例句与造句

1. The gradient of a line on a displacement time graph represents the velocity.
2. The largest gradient of a line mandates a larger, more expensive loco or a de-rating of carrying capacity, both of which would result in a less economical service for the line as a whole.
3. It's difficult to find gradient of a line in a sentence. 用gradient of a line造句挺难的