If it's a single value (for example, an upper bound on a shoe size, or the maximum number of monkeys that can fit in a barrel), leave the constant as it is.
Apparently you need three barrels of Saudi crude to get the same number of barrels of diesel you could get from one Libyan barrel.
很明显，三桶沙特原油生产的柴油数量才相当于利比亚一桶原油生产的柴油数量。
3
The bearings are designed for very high load carrying capacity and, because they are designed with the optimum number of large barrel rollers, are also suitable for heavy loads.