By videotaping the gauge during firing of the motor, one can record the time and pressure and use it to calculate instantaneous thrust and total impulse of the motor.
摄录由压力计在射击运动，人们可以记录的时间和压力，并用它来计算瞬时推力和总冲动的汽车。
2
Those components of which values are independent on history record of sampled quantities and reflect the relationship of instantaneous voltage and current are realized by themselves.