threshold energy meaning in English
底限能；低限能
门限能量
阈能
Examples
- If the incident proton collides with a proton bound in a nucleus, the threshold energy is lower because the target proton is bound .
如果入射质子是与束缚在原子核内的质子相碰撞，那么阈能会低一些，因为作为靶的质子是束缚着的。 - It was found that the simple triangular shape distribution would cause " two - peaked " energy distribution near the threshold energy , which must affect the group transfer matrix
阈能处三角形能谱分布的近似描述，导致产生了群散射矩阵的“双峰”现象，而阈能处矩形能谱分布使平均次级中子能量( - The relative momentum of two final particles and the cross section are zero at the threshold energy for an endothermic reaction , while the relative momentum of two initial particles is zero and the cross section at the threshold energy for an exothermic reaction is infinite
在吸热反应的阈能处，出射粒子的相对动量以及截面均为零。在放热反应的阈能处，入射粒子的相对动量为零，截面趋于无穷大。由于强子的动量仅提供如此低的质心系能量，强子物质中x 。 - We also experimentally observed the effect of sodium atom - molecular collisions and sodium atom - atom collisions on the line - shape and intensity of fluorescence spectra . in addition , the optically pumped infrared stimulated emission and energy transfer up - conversion process are observed in pr3 + : y2sio5 , and with the threshold energy , temperature dependence and divergence angle for the stimulated radiation are measured
此外还研究了掺杂在固体y _ 2sio _ 5中的pr ~ ( 3 + )的光泵红外受激辐射和能量转移上转换，分别测得了红外受激辐射的阈值能量和发散角，并拟合得出了能量转移速率。