可见光

The samples annealed at 500 and 700℃ have relatively strong visible emissions that originated from defects.

而对于在500和700℃下退火的样品，其可见光发射较强。

Alkanes can be chlorinated or brominated by treatment with chlorine or bromine in the presence of visible or uv light.

烷在可见光或紫外光照射下，用氯或溴处理才能氯化或溴化。

The spectrum of LED mainly centralizes in visible light wavelengths with a light efficiency high up to 80-90%.

LED的光谱几乎全部集中于可见光频段，其发光效率可达80-90％。

The results show that the sample prepared by coprecipitation method exhibits the highest activity and has the largest crystallite size, and after reaction for 140 min, 53.6% of rhodamine B is decolored; while for catalyst prepared by the citric acid complexation, the decoloration ratio is only 9.0%, though the latter has a higher surface area and smaller crystallite size than the former.

研究结果表明：这4种方法均能制备单一的钙钛矿型LaFeO3催化剂，其中，共沉淀法制备的催化剂具有最大的晶粒尺寸，最小的比表面积，仅为0.4 m2/g，显示出最强的光催化活性；在可见光照射下反应140 min，罗丹明B的脱色率达到53.6%。柠檬酸络合法制备的催化剂的比表面积最大，为8.1 m2/g，但其脱色率仅为9.0%。

The experiments indicated that active red in aqueous solution was decolored near 100% with COD removal rate of 67%, when the fiber dosage 1.0g/L, the H2O2 dosage 0.19mol/L, pH=4.93, irradiated by simulant visible light. The catalyst was recyclable and it wound not cause any secondary pollution.

实验结果表明，在模拟可见光照射下，纤维用量为1.0g/L、H2O2浓度0.19mol/L、pH值为4.93时，该催化剂可使40mg/L活性红染料水溶液的脱色率接近100%，化学需氧量的去除率达67%，且能重复使用对环境无二次污染。

The results show that photocatalyst TiO2 improves the removal rate of toluene in not only the nitrogen plasma field (NTP-P-O2/N2) eradiating ultraviolet light but also the argon plasma field eradiating visible light. This supports the idea that both the UV light and the high-energy electron in the plasma field can activate TiO2. Furthermore, the toluene removal rate in NTP-P-Ar system is 5% higher than that in NTP-P-O2/N2 system, confirming that high-energy electron has greater effect on the degradation performance of toluene, as compared with UV light.

结果表明：在发射紫外光的氮等离子体场(NTP-P-O2/N2)中和发射可见光的氩等离子体场中，TiO2：均能提高体系的甲苯去除率，说明等离子体场中产生的紫外光和高能电子均能激活光催化剂TiO2；NTP-P-Ar体系中的甲苯去除率较NTP-P-O2/N2：体系中的约提高5%，说明等离子体场中高能粒子对甲苯降解性能的影响要强于紫外光的影响。

These work can be as the reference to this area in the future Pd/〓/〓、Pd/〓、〓、〓, under illumining of photo 〓 was reduced under the action of the catalysts into products, including methane acid、methanol and formaldehyde.

我们对几种催化剂进行了对比性研究，如Pd/〓、Pd/〓、〓，通过可见光的照射，使二氧化碳在催化剂的作用下进行还原，发现得到的产物均为甲酸、甲醇和甲醛。

The long arcs in the optical image are caused by gravitational lensing of background galaxies by matter in the galaxy cluster, the largest system of such arcs ever found.

在可见光图像中巨长的弧线是由于背景巨大质量星系群的引力透镜所导致的，如此巨大系统中的弧线还从没见过。

It has been observed that the metabolizing of porphyrin in the cancer patients is abnormal.

研究发现癌患者卟啉代谢异常，卟啉在可见光激发下发出红色的特征荧光。

These cool orbs are nearly impossible to see in visible light, but stand out when viewed in infrared.

这些天体通过可见光是无法看到的，不过通过红外线能看到。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。