1) light filter
密度盘
1.
To adjust light,this system uses light filter and the iris aperture adjustment together.
本文阐述了调光系统的原理及结构组成,通过将密度盘与可变光阑相结合的方式,实现了自动调光控制。
2) optical measure equipment
变密度盘
3) Variable density plate
可调密度盘
4) Neutral Variable Density Disk
中性变密度盘
1.
Investigation of Special-Function Large-Angular Neutral Variable Density Disk;
特定函数—大角度中性变密度盘的研制
5) density
密度
1.
Effects of compaction process on the density and properties of PZT ceramic;
压制方式对锆钛酸铅压电陶瓷密度及性能影响的研究
2.
The density and shrinkage of PVC injection mouldings;
PVC注塑件的密度与收缩
3.
Woven fabric density measure based on adaptive wavelets transform;
基于自适应小波变换的织物密度测量
6) densities
密度
1.
Investigation on the Densities of Mosquitoes in the Underground of High Building in Cities,Fujian;
福建城市高楼地下层蚊虫密度调查
2.
Researches on the Ralationships between Soil Moisture and Maize Planting Densities as well as Yields;
土壤水分与玉米种植密度及产量的相关性研究
3.
Analysis of relationship between agestructures and population densities of mandarin voles;
棕色田鼠的种群年龄结构和密度关系分析
参考词条
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。