1) density grades
密度级
1.
The results show that the levels of the total sulfur and pyritic sulfur vary little in different size grades of coal,but in a same size grade the sulfur content increases with the density grades.
通过对云南省东北部昭通市镇雄干沟乡荣兴煤矿C5煤层原煤筛分浮沉实验的研究,分析了该煤层中全硫及形态硫在不同粒度级和密度级中的分布规律。
2) density grade
密度等级
1.
The paper puts forward some ideas on the aspects of the concept of solid concrete brick, density grade, size deviation, maximum water absorption, dry shrinkage, water content, frost resistance and fly ash additives in the standard of solid concrete brick and the compilation explanation.
对混凝土实心砖标准中密度等级的划分、尺寸偏差的先进与否、最大吸水率、干燥收缩率及相对含水率和抗冻性的规定以及粉煤灰掺量等值得商榷的几个问题,提出了个人意见,以求共同探讨和商榷,以利于标准的编制更加科学、先进、合理和适用。
3) level density
能级密度
1.
The level density of Ignatyuk formula is introduced into the many stages dynamics model(MSDM) instead of Fermi-gas formula to improve the simulating calculation of the spallation fragments.
利用Ignatyuk能级密度公式代替多步动力学模型(MSDM)中的费米气体能级密度公式,并考虑壳效应对能级密度的影响,以改进其对质子引起散裂产物的形成截面研究。
2.
The level density of Ignatyuk formula is introduced into the Many stages dynamics model ( (MSDM)) instead of Fermi-gas formula to improve the simulation of spallation fragments.
利用Ignatyuk能级密度公式代替MSDM模型中的费米气体能级密度公式,改进其研究质子入射引起散裂产物的形成截面。
4) energy level density
能级密度
1.
This paper, based on the Fermi gas model, studies the energy of free electron gas in metal,discusses the highest energy, the average energy and the energy level density of free electrongas.
本文根据费米气体模型理论,研究金属中自由电子气的能量,讨论电子的最高能量、平均能量和电子气的能级密度。
5) Smoke density grade
烟密度等级
6) class of accuracy
精密度分级
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条