The quality factors are respectively derived from their energy definition,but are not in agreement with those defined in the analyses in general literatures.
给出几种二阶RLC滤波电路在一般文献分析时定义的品质因数,由品质因数的能量定义,分别求出了这几种电路的品质因数,所求结果却与文献在分析时定义的品质因数不相符。
The overshadowing UV property of a series of inorganic particles with UV resistance was studied by an UV spectrophotometer with double beams, and the UV resistance of the fabrics of modified polypropylene fibers by blending the inorganic particles with UV resistance was also tested.
采用双光束紫外分光光度计研究了一系列无机粒子的遮蔽紫外线功能,并对共混某些无机粒子的丙纶纤维织物防紫外线功能的效果进行了测试探讨。
14 isolates were obtained by culturing with Monospores,ultraviolet mutagenic trial and chemical multagenic trial and their capability of anti-UV-ray were studied in this thesis.
以昆明地区分离的蜡蚧轮枝菌KM9803为出发菌株,通过单孢分离、紫外线诱变及化学诱变等手段获取14个菌株,经室内紫外线照射,测定14个菌株分生孢子萌芽率,表明各菌株分生孢子在抗紫外线能力上较出发菌株均有不同程度的提高。
Study on Bamboo-charcoal Polyester Fabric Anti-ultraviolet Property
竹炭涤纶纤维织物的防紫外线性能研究
Present status of standards for determination of UV-protective textiles
纺织品防紫外线性能的检测标准近况
Study on Bamboo-charcoal Polyester Fabric Anti-ultraviolet Property
竹炭涤纶纤维织物的防紫外线性能研究
Study on anti-ultraviolet and antibacterial function of SiO_2/TiO_2 composite sol
SiO_2/TiO_2复合溶胶防紫外线/抗菌性能研究
Performance Study and Style Evaluation of Anti-ultraviolet Polyester/Wool Fabric
防紫外线涤纶纤维及其毛混纺织物性能研究与风格评价
Performance study and handle style evaluation of ultraviolet-resistant worsted polyester/wool blend fabric
防紫外线精纺毛涤混纺织物性能研究与风格评价
Electric sunroof in glass version
防紫外线电动玻璃天窗
Anti-ultraviolet Fibers and Textile Finishing Process
防紫外线纤维及防紫外线纺织品整理工艺
Ultraviolet Radiation Aging Performance of SBS and SBR Modified Asphalt
SBS,SBR改性沥青抗紫外线老化性能对比
Effect of process parameters on ultraviolet resistance of fabrics
工艺参数对织物抗紫外线性能的影响
Investigation on uptake of UV-absorber onto polyester fabric and its UV absorption properties
紫外线吸收剂对涤纶的上染及其紫外线吸收性能
Clinical observation of narrow band UVB in the prevention of recurrence of polymorphous light eruption
窄谱中波紫外线光疗预防多形性日光疹复发
Character of production: water proof, damp proof, mould proof, anti-ultraviolet radiation.
产品特征：防水，防潮，防霉，抗紫外线。
Nonlinear Prediction of Attenuation of Asphalt Performance after Ultraviolet Aging
沥青紫外线老化后性能衰减的非线性预测
Research on the Synthesis, Growth and Properties of New Ultraviolet and Deep-ultraviolet Nonlinear Optical Crystal Materials;
新型紫外、深紫外非线性光学晶体材料合成、生长和性能的研究
The UV-protection of Lac Dye and Its Application to Silk;
紫胶红色素的紫外防护性能及其在真丝上的应用
Study on UV-protective properties of cotton fabric treated with composite sol
复合溶胶处理棉织物的防紫外性能研究
sun-lamp(lamp producing ultra-violet light)
太阳灯（能产生紫外线的）.
Only a few UV-filters are capable of blocking UV-A, the wavelengths(17) that penetrate deeply into the skin.
只有很少的防晒成分能挡住UV－，一种波长能深深穿透皮肤的紫外线。
