The results show that two particular and wide absorption bands,band a1 (425～428 nm) and band a3(693～688 nm),are present in Qingu turquoise samples,and the dominant wavelength and purity of the visible absorption spectrum are corresponding to the colour characteristics.
采用USB2000微型光纤光谱仪测试了湖北秦古绿松石样品的可见吸收光谱,结果表明,该样品在可见光范围内存在a1(425~428 nm)和a2(683~688 nm)两处特征的吸收宽谱带,其可见吸收光谱主波长和纯度的变化与颜色特征具有一定的对应关系。
The results show that blue LED and green LED dominant wavelengths change little with different standard light sources,and the color purities are relatively high,at 0.
主要对蓝光、绿光、白光LED的色度特性进行分析,首先通过单色仪,分别测得蓝光、绿光、白光LED的相对光谱功率分布并以色度学理论为基础,计算出光源主波长、色纯度、色温和显色指数。
Based on the spectra analysis of samples from different block and different formations of Jiangsu oilfield, the most high peak wave-length, the fluorescence class and the oil-nature index are withdrawed as characteristic values.
在室内实验和现场分析的基础上 ,文章对江苏油田不同断块、不同层位的储集层中不同性质的原油进行定量荧光分析 ,将荧光谱图中主峰波长、主峰荧光强度、油性指数确定为荧光谱图特征值。
Study on Fe(Ⅲ)-SCN~-System and Determination of Trace Iron by Primary-Secondary Wavelength Computation Spectrophotometry;
Fe(Ⅲ)-SCN-体系及主次波长计算光度法测定痕量铁的研究
The theoretical model and nonhomogeneous differential equation and dominant wavelength theory of folding and deforming of equally thick multi layer intercalated between equal thickness and character media are created by using mechanics of elasticity and plasticity.
运用弹性力学和塑性流变学理论建立了夹于相同力学性质等厚度介质中同厚度多层褶皱变形理论模型、非齐次偏微分方程及主波长理论 ,运用数理方程和特殊函数理论解出齐次偏微分方程的特解和一般解 ,并用弹性材料和塑性材料的模拟实验加以验证 。
In this paper, the limitation of Blot and Ramherg s "Dominant Wavelength Theory" isdiscussed, and modified theory applicable to the folds of single layer as a surface-layer is pro-posed.
本文讨论了Biot和Ramberg提出的“主波长理论”的局限性,并提出了一个适用于主单层位于表层时褶皱的“主波长理论”;此外,运用弹性材料的褶皱实验对此改进理论加以验证。
The limitation of the existing“Dominant Wavelength Theory”is discussed,and modified theory forapplicable to the folds of single layer on the limitedly thick media is proposed.
讨论了已有褶皱的“主波长理论”的局限性,并提出了一个适用于位于有限厚介质上单层褶皱的“主波长理论”。
Determination of DO in Environmental Water by Primary-Secondary Wavelengths Spectrophotometry
主次波长分光光度法测定环境水中溶解氧
Determination of Pb in environmental water based on PbXO complex by primary-secondary wavelength spectrophotometry
PbXO配合物主次波长分光光度法测定环境水中铅
Seismic surveying is largely concerned with the primary P waves.
地震勘探主要研究一次纵波。
The Mayor officiated as chairman at the meeting.
市长以主席身份主持那次的集会。
A Study of Diversified Initiation Theme of Harry Potter Series;
论《哈利·波特》系列小说的多元成长主题
The Modeling of Quadratic Optimal Complete Control with object Function of Growth and Fluctuation;
增长波动目标二次最优完全控制的建模
Subwavelength Imaging with Layered Metamaterials
层结构人工电磁介质次波长成像的研究
Temperature and wavelength tuning of second harmonic generation in a nonlinear photonic quasi-crystal
准晶非线性光子晶体中二次谐波波长和温度调谐的研究
This sandstone consists of quartz primarily and feldspar secondly.
这种砂岩的成份以石英为主，长石次之。
On Neo-Schumpeterian and Marxism Long-Wave Theory
新熊彼特派和马克思主义长波理论述评
The third, or main wave,
第三种波，即主波，
of primary branches, width of pod and length of primary branch were mainly controlled by additive effect.
主花序长度、一次分枝数、角果宽度和一次分枝长主要受基因的加性作用;
Chief Serb leaders of Bosnia-Herzegovina and the chief officials of the United Nations peacekeeping force stationed in Bosnia-Herzegovina participated in this meeting.
波黑塞族主要领导人和联合国驻波黑维和部队的主要领导人参加了这次会谈。
A secondary woody stem or limb growing from the trunk or main stem of a tree or shrub or from another secondary limb.
分枝从树或灌木的主干或另一次级树枝上生长出来的次级树枝
The minister have propose several Initatives to try to restart the deadlock negotiation
部长几次主动决定重开陷于僵局的谈判
The minister has proposed several initatives to try to restart the deadlock negotiation.
部长几次主动决定重开陷于僵局的谈判。
This issuance meeting was hosted by Liu Yong,the minister of extending department.
此次新闻发布会由文化推广部部长刘勇主持。
Every time I see the Wall, I am stirred by it and feel a sense of pride.
每次我看到长城，心中不由自主地感到自豪。