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hourly ozone concentration 臭氧小时体积分数
The ozone concentration in gas phase is determined by means of iodometric method. 气相臭氧浓度测定采用碘量法。
The simulated results show that the NMHC emission reduction cannot achieve optimal efficiency to ozone concentration. 故台南县可从该二种天气型态，配合敏感物种进行减量，以降低臭氧之污染。
The temporal variation of ozone concentration at night is mainly controlled by the concentration of NO_x, HO_2, OLE, ETH. 夜间O3浓度的衰减主要受NOx;HO2;OLE和ETH等物质的影响.
Ozone Ageing Resistance Test of Adhesive Tape: The adhesive tape shall be drawn to 110% with ozone concentration of about 50 PPM in 72 hours with no fractures. 胶条耐臭氧老化测试：胶条拉长110%25,交流耐压试验台，臭氧浓度约50PPM,臭氧老化试验箱，时间72小时,悬架试验台，无裂痕
But in the stratosphere, ozone concentration sharp rise, the moisture content is extremely small, there will not be a cloud phenomenon, stratospheric than troposphere to dry much. 但是中在平流层，臭氧浓度急剧上升，水汽含量也极为的少，所以不会出现云雨现象，平流层比对流层要干燥得多。
With different ultrasonic power(200 W-800 W),ozone concentration(0.02 mg/L-0.14 mg/L)and treatment time(35 s-210 s),it is indicated the effect of sterilization by ultrasonic-ozone is better than that of untrasonic or ozone only. 超声功率从200W-800W;臭氧浓度从0.;02mg/L-0
Winner D.A.,1998,Long-term Modeling of Regional Ozone Concentrations and Control Strategies. 江旭程，2004，空气品质网格模式模拟技术研发计画期末报告。
Their measurements showed a 40 percent reduction in ozone concentrations over Antarctica from the middle 1970's to 1984. 他们的测量表明，从20世纪70年代中期到1984年，南极上空的臭氧浓度减少了40%25。
Ozonation is a useful method of soil remediation for unsaturated soil rather than saturated soil unless elevate the ozone concentration in water then pass it onto soil. 在不饱和土壤情况下，臭氧处理可能作为有效的土壤整治方法，但在饱和土壤情况下，除非提高臭氧溶液之浓度否则其处理效果不佳。
The trains leave at hourly intervals. 列车每隔一小时开出一趟。
Their average hourly earnings were ten dollars. 他们每小时的收入是十元。
This medicine is to be taken hourly. 这药每小时服一次。
TOMS AI images and the atmospheric background circulations suggest that biomass burning plumes in South Asia are transported to Kunming and cause the enhancement of ozone concentrations in the lower troposphere. 这与以往研究中东南亚地区生物体燃烧导致华南地区对流层低层臭氧浓度异常增高有所不同。
They lived in hourly dread of discovery. 他们时时刻刻担心被人发觉。
In April 1991,the U.S. Environmental Protection Agency (EPA) reported that atmospheric ozone concentrations above the United States decreased by 4 to 5 percent during the 1980's,three times faster than during the 1970's. 在1991年4月，美国环保局报告说，美国上空的大气臭氧浓度在20世纪80年代下降了4%25－5%25，较70年代加快了3倍。
In April 1991, the U.S. Environmental Protection Agency (EPA) reported that atmospheric ozone concentrations above the United States decreased by 4 to 5 percent during the 1980's, three times faster than during the 1970's. 在1991年4月，美国环保局报告说，美国上空的大气臭氧浓度在20世纪80年代下降了4%25－5%25，较70年代加快了3倍。
Overall, good simulations of tropospheric ozone concentrations over Europe by using this model system can lay a scientific basis for further study of Tran-Eurasian transport of pollutants. 本研究结果表明，该模式系统对欧洲地区对流层臭氧浓度的大小和分布具有良好的模拟性能，这为进一步运用该模式系统探讨欧洲地区的污染排放物对亚洲的输送问题提供了科学的依据。
Ozone Concentration Measurement and Monitoring in Waterworks 自来水厂中臭氧浓度的蓝控与测定
The long-distance bus runs hourly. 长途汽车一小时开一班。