The actual results validate the control strategy, the gas caloric value and pressureerror can be controlled in the range of 5% of their set value.
实际运行结果验证了控制策略的有效性，煤气热值和压力误差均在设定值的5%之内。
2
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.
误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
3
What those early craftsmen had found by trial and error was that under pressure a pagoda's loose stack of floors could be made to slither to and fro independent of one another.