A graduated neutral density filter will also help you make sure the sky isn't overexposed.
累进中性密度滤镜将保证你照片里的天空不会曝光过度。
Polyester, polypropylene, high density vinylon filter cloth is widely used in the pharmaceutical, chemicals, dyes, smelting, cement, mining and other enterprises in production.
涤纶、丙纶、维纶等高密度过滤布则广泛应用于制药、化工、染料、冶炼、水泥、矿山等企业生产中。
In the new algorithm, a bank of Gauss-Hermite filter (GHF) is used for generating the importance density function.
在滤波算法中，我们用一簇高斯厄米特滤波器(GHF)来产生重要性概率密度函数。
The simple filter apparatus couldeffectivelly purfty water quality, and raise rearing density and survival rate of the parentshrimp in the overwintering pond.
简易过滤装置可有效地净化亲虾池水质，提高亲虾养殖密度与成活率。
The experiment result demonstrate:(1) The depurative ability of equipments can be improved through adjusting the density of fiber filter material .
实验结果表明：（1）调整纤维滤料密度，可相应调节设备运行出力。
The first is kernel density estimation (KDE) detection based random walk ordering filter.
第一种是基于核心密度估计检测的随机游走排序滤波器。
Effects of AC and anther density on pollen embryo and callus production and green plant regeneration were studied in a filter-sterilized, liquid-medium culture system.
在过滤灭菌的液体培养体系中研究了甘露醇预培养和诱导培养过程中活性碳和花药密度对大麦花培效率的影响。
In order to improve the performance of median filter and enhance adaptability for different intensity pepper-salt noise, a median filter based on noise density estimation is proposed.
为了提高中值滤波器的滤波性能和适应不同强度的椒盐噪声，提出了基于噪声强度估计的中值滤除算法。
It may be safe to say this dosing technique results in a very uniform density pack throughout the filter.
也许保险点说，这一压粉技术在整个滤碗中形成了密度非常均匀的粉饼。
The filter is adopted long extraordinary deep fabrication of fibre , classics high pressure , high density treatment molding; Guard against the oil product oxide and acidity go up.
过滤器采用特出长纤维深层制作，经高压，高密度处理成型；防止油品氧化和酸度上升。
The filter media further includes a dielectric material layer having a relative high density and a subsequent dielectric material layer having a relative lower density.
该过滤介质还可以包括密度相对较高的介电材料层及随后的密度相对较低的介电材料层。
Compared with traditional filter, it has better function of gas dynamics , and it has small density but has bigger surface, it has good absorbing function with small windy resistance.
与传统活性炭过滤网相比，具有更优良的气体动力学性能，体积密度小，比表面积大、吸附效率高，风阻系数小。
By means of residual impulse noise detection, the window size of median filter was chosen adaptively to remove the high density impulse noise while preserving the details of the image.
通过对剩余脉冲的检测，自适应地改变滤波器窗口尺寸，从而有效地滤除密度较大的脉冲干扰，同时较好地保留图像的细节。
The influence of linear density uneveness of PP tow for cigarette on the filter tip quality was described. The influential factors upon linear density uneveness were analyzed.
阐述了聚丙烯烟用丝束线密度不匀率对过滤嘴质量的影响，分析了影响丝束线密度不匀率的因素。
The input information is contained in the output stream as a density of ones with a data rate up to 20 MHz. The original information can be reconstructed with an appropriate digital filter.
输入信息包含在数据率最高为20MHz的输出流中，通过适当的数字滤波器可重构原始信息。
The qualitative and quantitative analysis shows that this technique can filter off the additive and multiplicative noise of the fringe patterns effectively, and avoid blurring high-density fringe.
定性和定量分析的结果表明该技术能够有效滤除条纹图中的加性噪声和乘性噪声，并且不会导致高密度区域的条纹模糊。
This experiment used filter paper method to determine each kind of density of cucumber skin extracts" inhibitory action with E. coli, Bacillus subtilis, Aspergillus and Penicillium."
采用滤纸片扩散法测定各种浓度的黄瓜皮对大肠杆菌、枯草芽孢杆菌、黑曲霉、青霉四种菌种的抑制作用。
SHW-60/F5, consisted of special organic synthetic fiber, is a kind of high-density pocket filter.
SHW-60/F5由特殊有机合成纤维制造而成，是一种高密度的袋式滤料；
SHW-60/F5, consisted of special organic synthetic fiber, is a kind of high-density pocket filter.
SHW-60/F5由特殊有机合成纤维制造而成，是一种高密度的袋式滤料；
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