黑度,blackness
1)blackness[英]['bl?knis][美]['bl?kn?s]黑度
1.A New Method for Blackness Determination;高炉熔料黑度近似测定的新方法
2.The influences of NH_4VO_3 concentration,and solution temperature on wear resistance,surface roughness,adhesion,blackness and thickness of the ceramic coatings were studied.在磷酸盐溶液中加入NH4VO3,通过微弧氧化工艺在6061铝合金上制得了黑色陶瓷膜,研究了NH4VO3含量、溶液温度对膜层的耐磨性、表面粗糙度、附着力、黑度、厚度的影响。
3.The change of coating physical properties, reduction of its blackness will reduce the heat radiation of equipment to atmosphere.设备表面防腐蚀涂层对设备的散热有着一定的影响,改变涂层的物性、降低其黑度值,便能降低设备表面对大气的散热。
英文短句/例句

1.Colour black--Determination of blacknessGB/T7048-1993色素炭黑黑度的测定
2.She had gotten a good tan after the holiday at thesea.在海边度假之后,她的皮肤晒得黑黑的。
3.black second coating antifouling黑色第二度船底防污漆
4.black lead first coating anticorrosive黑铅第一度船底防锈漆
5.The two attitudes stand in sharp contrast.两种态度, 黑白分明。
6.Conversion of hardness and strength for ferrous metaGB/T1172-1999黑色金属硬度及强度换算值
7.Working temperature range is within-40~+100℃. Available in black with either corrugated or smooth finish.工作温度-40~100℃外观为黑色光面及黑色布纹。
8.testing methods for permissible explosives and permissible detonator黑色炸药和黑色雷管的安全度试验方法
9.A fugitive Black slave in the West Indies in the17th and18th centuries.逃亡黑奴17或18世纪西印度群岛的逃亡黑奴
10.a large clarinet whose range is an octave below the B-flat clarinet.低于B平黑管范围在八度音节内的大黑管。
11.Jacket: Black low mid or high density polyethylene.护套:黑色低密度或中密度或高密度聚乙烯。
12.Temperature of the black body that emits radiation of the same chromaticity as the radiation considered.待测灯与黑体的辐射具有相同的色度值时,该黑体所具有的温度。
13.The pictures which have no colour, only black, white or gray tones.没有彩色而仅有黑、白、或灰度的画面。
14.Colour carbon black--Determination of flow characteristicGB/T7052-1995色素炭黑流动度的测定
15.Determination of speed of black-and-white motion-picture negative filmGB/T15958-1995黑白电影负片感光度的测定
16.Hagen began to think things out.黑根在心里度长短,权轻重。
17.Indian ink: Intensely black drawing ink.印度墨汁:浓黑的绘图墨水。
18.Black colour, its hardness is higher than that of WA, its toughness is a bit lower.黑色,有光泽,硬度比白刚玉高,韧性较低。
相关短句/例句

Emissivity[英][,emi'siviti][美][,?m?'s?v?t?]黑度
1.In this paper,thd relationship between emissivity of cement clinders and its compositionat the temperature of 1000~1300℃ is studied.本文研究了1000~1300℃范围内水泥熟料的黑度与成分间的关系。
2.Based on the Wien s law temperature and emissivity of flame were obtained by processing the measured data with an optimization algorithm.根据这一特点,从维恩公式出发,利用最优化方法处理测得的火焰辐射光谱信号,得到了火焰的温度和黑度
3.Then based on emissivity,it carries research and experiment on the function of the heat transmisson of paint,followed by the ε-λ relationship curve.本文从理论上分析了远红外辐射涂料节能原理 ,发现涂料黑度随波长增加呈增加趋势 ,并进行了涂料传热性能的试验研究 ,得出了远红外辐射涂料的ε -λ的关系曲线。
3)Density[英]['dens?ti][美]['d?ns?t?]黑度
1.Redefinition the Density of Digitizing Radiographic Testing Technique;工业数字成像技术中黑度概念的变化
2.Through the developing of the relation formula of density, exposure degree and exposure distance and then defining the .并建立了偏心周向一次曝光时最大偏心距与环缝外半径的关系式 ,建立了当实际偏心距超过一次曝光的最大偏心距而采用偏心周向分次曝光法透照时分次点计算式和任意点黑度计算
4)blackening[英]['bl?k?n][美]['bl?k?n]黑度
5)blackness of carbon black炭黑黑度
6)black chrominance黑色色度
延伸阅读

黑度  实际物体的辐射力E与同温下黑体(见黑体和灰体)的辐射力E0之比,又称辐射率。黑度ε=(E/E0)T,它反映物体在辐射能力方面接近黑体的程度,是辐射换热中的重要参数。G.基尔霍夫通过模拟黑体的人造空腔论证了在相同的温度下,以黑体的辐射力为最大;物体表面的辐射率(即黑度)在数值上等于该表面对来自同温度的投入辐射的吸收率。因此,一切辐射力高的物体都具有高的吸收力。黑体的黑度等于1.0;各种实际物体的黑度都在0~1.0之间,其具体数值不仅与材料和表面情况有关,还与辐射能的波长,即与温度有关。