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The influence of acidity and concentration on fluorescence and absorption spectra were investigated. Using quinine bisulphate as a reference, fluorescence quantum yield of aesculetin in the condition of pH=9.32 was determined to be 0.13 at excitation wavelength 365nm.

考察了酸度与浓度对其荧光性质和吸光性质的影响，以硫酸奎宁为参比，测得秦皮乙素水溶液在pH=9.32，激发波长365nm条件下的荧光量子产率为0.13。

The paper analysed in detail the factors affect the fuel burning in calciner and the effect of CO2 concentration on meal calcining rate , and brought forward suggestion for design, alteration and operation.

详细分析了影响燃料在分解炉内燃尽的因素和分解炉CO2浓度对生料分解率的影响，针对烧无烟煤的分解炉的设计、改造和操作提出了针对性建议。

The effect of OMMT concentration on the flame retardancy of the composites was studied by means of cone calorimetry.

采用锥形扫描量热测试法研究了OMMT用量对WF/PVC复合材料阻燃性能的影响。

Effect of sharp decrease of chloric ion concentration on sludge microorganism is larger than that of the sharp increase in the system.

氯离子浓度的突然急剧降低比突然急剧增高对系统污泥微生物的影响更大。

Chromophoric dissolved organic matter solutions at different concentrations were prepared to study the effects of CDOM concentration on excitation emission matrix spectrum and synchronous fluorescence spectrum.

用自制的海水有色可溶性有机物干粉配制不同质量浓度的水溶液，研究其对三维荧光光谱和同步荧光光谱的影响。

Using W-HMS molecular sieve synthesized from the tungsten source of (NH4) 2WO4 as catalyst and hydrogen peroxide as oxidant, the effects of reaction time, temperature, dosage of catalyst, solvent type and volume, and oxidant concentration on the catalytic oxidation of cyclopentene to glutaraldehyde were investigated.

对以(NH4)2WO4为钨源合成的W-HMS分子筛为催化剂，过氧化氢为氧化剂，环戊烯合成戊二醛的多相催化反应进行了研究，考察反应时间、反应温度、催化剂用量、溶剂种类和用量以及氧化剂浓度等因素对戊二醛收率的影响。

Methods Postoperatively, 1 294 eyes of 1 262 patients with rhegmatogenous RD including 243 emmetropic and 1 031 myopic eyes were retrospectively studied. The affects of proliferative vitreoretinopathy, posterior vitreous detachment, vitreous liquefaction and concentration on the surgical prognosis were evaluated.

回顾1996年1月至1997年7月在我院行手术治疗的孔源性视网膜脱离患者1 262例（1 294只眼），其中近视眼RD组1 031只眼，正视眼RD组243只眼，并研究增殖性玻璃体视网膜病变（proliferative vitreoretinopathy，PVR）的分级及玻璃体后脱离(posterior vitreous detachment，PVD)、液化、浓缩等对手术预后的影响。

The effect of reaction timcxreaction temperaturexpH and citrate concentration on the esterify process were discussed.

柠檬酸酯淀粉是一种具有抗性作用酯化变性淀粉，在国外广泛应用于面包、饼干及其它食品中，以改善食品品质。

Objective To evaluate the influence of different salt iodine concentration on urinary iodine excrition among the target population and to determine the appropriate level of salt iodization to the local people.

目的观察不同浓度碘盐对人群碘营养状况影响，寻找适合当地居民食用的盐碘浓度。

The concentration on the period of construction only leads to a very hard competition between supervision enterprises: it is easy to cause the price competition, the irregular competition, pernicious competition and even some black-box actions with unfairness and irregulation.

监理业务向施工阶段集中直接导致了监理市场的竞争加剧，这种局面又极易引发价格战争，无序竞争，恶性竞争，甚至暗箱操作等一系列不公平，不规范的做法；国家规定的取费标准达不到，势必影响监理服务质量，造成监理和业主双方受损。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。