不确定范围 meaning in English

uncertain region
uncertainty region

This energy uncertainty in turn appears as a variability in the apparent mass of the particle .
这种能量的不确定范围，又表现为粒子表观质量的可变性。
Simulation results indicate that the algorithm can reduce the delay ' s uncertainty range greatly , even with great position errors the uncertainty range still can be reduced to the half , and is effective for the fast acquisition of long cycle code
数值计算表明，算法能够大大压缩不同导航星和不同场景用户之间传播时延的不确定范围，即使在用户与卫星位置误差较大的恶劣应用背景下也能将不确定范围压缩一半，从而有效地辅助长码快捕的实现。