threshold energy中文什么意思

• 底限能；低限能
• 门限能量
• 阈能

• threshold:    n. 1.门槛；入口，门口。 2.【心理学】阈限。 3. ...
• energy:    n. 1.干劲，活力。 2.(语言、行为等的)生动。 3 ...
• energy threshold:    能阀; 能量阀; 能阈
• effective threshold energy:    有效阈能
• high-energy threshold:    高能阈

例句与用法

1. 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。
2. 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(
3. 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 。
4. 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。

百科释义

In particle physics, the threshold energy for production of a particle is the minimum kinetic energy a pair of traveling particles must have when they collide. The threshold energy is always greater than or equal to the rest energy of the desired particle.

其他语言

threshold energyとは意味：閾値｛しきいち／いきち｝エネルギー
threshold energy перевод：пороговая энергетика