查询词典 Ultraviolet

Description: Humans skin has the spot reason, is because human body endocrine disorders and hereditary factors related, particularly feminine female hormone being out of balance, the abnormal menstruation, the liver function suffer injury or the chronic nephrosis, can create the spot the appearance, when the ultraviolet ray solarization and the pressure as well as the diet are improper, will aggravate the spot the color, will present the skin pigmentation.

描述： 人的皮肤产生斑点的原因，是由于人体内分泌失调和遗传因素有关，尤其是女性的雌性激素失调、月经不调、肝功能受损或慢性肾病，都会造成斑点的出现，当紫外线日晒和精神压力以及饮食不当，更会加重斑点的颜色，出现皮肤色素沉着。

Polarized ultraviolet radiation in space might also have helped shift the balance toward southpaw molecules.

与紫外线辐射的不同反应，或许同样帮助平衡倾向于左旋分子。

Methods: Used the method of ultraviolet spectral line group, the UV spectral of the solutions extracted by four different kinds of solvents.

应用紫外谱线组法，测试9种老鹳草在4种不同溶剂中的紫外吸收光谱。

The experimental results show that this measuring system is simple, reliable and easily repeated. Between the 250nm and 450nm, it can exactly measure the spectral response of ultraviolet detector.

实验结果表明，该测量系统结构简单、工作可靠、重复性好，在250nm~450nm范围内，能较准确地测量紫外光探测器的光谱响应曲线。

0 Communication technology in ultraviolet-visible spectrophotometer is introduced.

0通讯技术在紫外-可见分光光度计上的应用。

The content of DNA in bone marrow cells was measured with ultraviolet spectrophotometer.

用紫外分光光度计测定骨髓细胞内DNA的含量。

IR and UV-vis were used for qualitative analysis and the ultraviolet spectrophotometric method was used for quantitative determination.

并讨论了温度及阴极电流密度对邻甲苯甲酸产率和电流效率的影响。

A simple, fast and accurate analytical method for the determination of ginkgolic acids by ultraviolet spectrophotometry was established.

建立了简便、快速、准确的银杏酸含量的分光光度分析方法。

The method of determination of pyruvates content was studied by ultraviolet absorption spectrophotometry.

建立了测定发酵液中丙酮酸含量的紫外分光光度法。

Objective To establish a method for the determination of total flavonoids in Yishoudixian Granule by ultraviolet spectrophotometry.

目的 建立紫外分光光度法测定益寿地仙颗粒总黄酮含量的方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。