The number of undergraduates was roughly constant during this period.
In this way, the required magnitude of the control current can be also held roughly constant, no matter what the load.
Combined with the electric drive, the car's horsepower remained roughly constant.
Since then, the combined traffic volume of the former has remained roughly constant.
The time that the fuel takes to burn is roughly constant.
The school has around 1500 students, a figure which has remained roughly constant for over a decade.
Experiments have shown that the value of L, while roughly constant, is not exactly the same for all materials.
That number has remained roughly constant since 1999, and rose from 55 percent in 1992.
Its average grade point average has been roughly constant at about 2.7 since 1980.
For the economy as a whole, labor's share of national income has stayed roughly constant at just above 70 percent.