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fiberglass filter
相关语句
  玻璃纤维过滤器
     By using fiberglass filter and metal filter to kill the germs in air,the rate of germ-killing reached by 99.999%.
     通过采用玻璃纤维过滤器和金属过滤器对空气除菌,除菌率达99.999%。
短句来源
  “fiberglass filter”译为未确定词的双语例句
     APPLICATION OF MEMBRANE-LAMINATED FIBERGLASS FILTER MEDIA
     浅谈玻璃纤维覆膜滤料的应用
短句来源
     The selfabsorption efficiency of α particles in the fiberglass filter with the maximum thickness of 6.7 mg·cm-2 is given.
     通过损失率函数与沉积分布函数估算出了一定实验条件下α粒子在最大质量厚度为6 7mg·cm-2的玻璃纤维滤纸中的自吸收系数。
短句来源
     Emission experiment in a turbocharged direct-injection diesel engine fuelled with biodiesel,diesel and B20 was carried out. The particle-phase and gas-phase polycyclic aromatic hydrocarbons(PAHs) emissions were collected by fiberglass filter and "polyurethane foam(PUF)+XAD-2" respectively and analyzed by GC-MS.
     在一台直喷式增压柴油机上进行了生物柴油、柴油及其掺混油B20的排放特性试验,分别用玻璃纤维滤膜和“聚氨基甲酸乙酯泡沫(PUF)+XAD-2”采集了尾气排放物中的颗粒相和气相多环芳香烃(PAHs),并用色谱-质谱联用仪对PAHs进行了分析。
短句来源
     Study on Self-absorption of Alpha Particles in a Fiberglass Filter
     α粒子在玻璃纤维滤纸中自吸收的实验研究
短句来源
     The PAHs in the vapor phase and on the particulates have been collected simultaneously through PUF and fiberglass filter film.
     本文采用聚氨基甲酸乙酯泡沫(PUF)吸附块和玻璃纤维滤膜(GF)同时采集大气中气态和颗粒物中的多环芳烃(PAHs)。
短句来源
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  fiberglass filter
In order to investigate the filtration properties of fly ash from a conventional coal power plant, the filtration drag across the dust cake over an absolute fiberglass filter element was measured.
      
Filtration test results are shown for fiberglass filter paper of intermediate filtration efficiency.
      
The cells were trypsinized and harvested on a fiberglass filter using a Tomtec harvester.
      
Solid particles and PACs are collected by using a sampling system composed of a waterquenched probe followed by a micro-fiberglass filter paper.
      
Again, imagine an operator collects a one-liter sample of raw wastewater and filters it through a very fine mesh filter, such as a fiberglass filter.
      


The resistance of f2 bacterial virus to chlorine, 69-1 and organic iodine disinfectants are compared with poliovirus 1, echovirus 1, coliphage T2 and E. coli. From these tests it is apparent that f2 is more resistant than coliphage T2, E. coli, and possesses a similar susceptibility as poliovirus 1 and echovirus 1. The results .indicate that f2 can be used as an indicator for inactivation of enteric viruses in water. The adsorption-elution method, using a JU glass microfiber filter, is employed to quantitatively...

The resistance of f2 bacterial virus to chlorine, 69-1 and organic iodine disinfectants are compared with poliovirus 1, echovirus 1, coliphage T2 and E. coli. From these tests it is apparent that f2 is more resistant than coliphage T2, E. coli, and possesses a similar susceptibility as poliovirus 1 and echovirus 1. The results .indicate that f2 can be used as an indicator for inactivation of enteric viruses in water. The adsorption-elution method, using a JU glass microfiber filter, is employed to quantitatively determine f2 in water. CaCl2 is added to the water samples, and adjusted to pH 3.0-3.5. They promote f2 to be adsorbed onto the fiberglass filter. The viruses can be eluted with 5ml 5% beef extract at pH 8-9. The average efficiency of recovery from 1 liter of seeded water is 34-102%, with a mean of 58%.

本文通过f_2与指标菌、T_2噬菌体及Polio 1型和Echo 1型病毒对氯、“69-1”和有机碘消毒剂的耐力比较,表明f_2噬菌体对常用卤素消毒剂比指标菌及T_2噬菌体耐力要强,与肠道病毒相近,可以用作水中肠道病毒灭活初步评价的指标。采用JU型玻璃纤维滤纸吸附-洗脱法定量检验水中f_2噬菌体,通过加CaCl_2及调节水样pH至3.0~3.5,促进吸附作用,并以pH8~9.5%牛肉膏汤过滤洗脱,可浓集水样1L,对人工污染水平均回收率为34~102%,总平均58%。

The PAHs in the vapor phase and on the particulates have been collected simultaneously through PUF and fiberglass filter film. The batch collecting samples have been carried out respectively in both inhabited areas and clean meadow areas in the two seasons of winter and summer. The contents of PAHs, such as anthracene, pyrene, chrysene, perylene, bezo(a) pyrene, dibenz(a, h) anthracene and benzo [ghi ]-penylene, have been determined by using HPLC. The results show that over half of the PAHs of below four...

The PAHs in the vapor phase and on the particulates have been collected simultaneously through PUF and fiberglass filter film. The batch collecting samples have been carried out respectively in both inhabited areas and clean meadow areas in the two seasons of winter and summer. The contents of PAHs, such as anthracene, pyrene, chrysene, perylene, bezo(a) pyrene, dibenz(a, h) anthracene and benzo [ghi ]-penylene, have been determined by using HPLC. The results show that over half of the PAHs of below four rings were found in the vapor phase and most of the PAHs of over four rings were found in particulates; the percentage of each of PAHs in the vapor phase in summer was higher than that in winter; the percentages of the PAHs in the vapor phase and on particulates in clean meadow areas were different from those in inhabited areas; and in winter the time at which the pollution in inhabited areas was most serious was 10 ' 00-11 : 30 and 17 : 30-21 : 30 but in summer the time was 6 : 00-10 : 00 and 18: 00-22: 00.

本文采用聚氨基甲酸乙酯泡沫(PUF)吸附块和玻璃纤维滤膜(GF)同时采集大气中气态和颗粒物中的多环芳烃(PAHs)。对居民区和草原清洁区分别进行冬夏两季间歇式采样,用高效液相色谱测定了蒽、芘、(芦出)、苝、苯并(a)芘、二苯并(a、h)蒽、苯并(ghi)苝等多环芳烃的含量。结果表明,在居民区四环以下的PAHs有一半以上存在于气态中,四环以上的PAHs大部分存在于颗粒物上;夏季每种PAHs在气态中的百分率比冬季高;草原清洁区与居民区PAHs在气态和颗粒物上的百分率不同;冬季居民区污染严重时间是10:00—11:30和17:30—21:30,而夏季污染严重时间是6:00—10:00和18:00—22:00。

In the last ten-days of September of 1993 we carried out an environmental geology-geochemical investigation along the main channel of the Yellow River. At that time the Yellow River had an ordinary runoff. Water specimens were collected in 15 river sections from the upper to the lower reaches. Each water sample is 10 L and was sampled in the water layer of the surface to 50 cm deep. The water samples were filtered by a fiberglass filter film with 0.45 am bore diameter, and their concentration of SO was...

In the last ten-days of September of 1993 we carried out an environmental geology-geochemical investigation along the main channel of the Yellow River. At that time the Yellow River had an ordinary runoff. Water specimens were collected in 15 river sections from the upper to the lower reaches. Each water sample is 10 L and was sampled in the water layer of the surface to 50 cm deep. The water samples were filtered by a fiberglass filter film with 0.45 am bore diameter, and their concentration of SO was determined by means of the chemical gravimetric method.The sulfur isotopic ratio of sulfate was determined by a MAT-252 mass spectrometer after the preparation for the isotopic analysis. All the data given in this paper are expressed in the international conventional “δ” notation. For comparison, at the same time, we took water samples in 13 river sections from the upper to the lower reaches of the Yangtze River and carried out the same determination works for them.From the figure of δ34SO values against SO concentrations we can see that from the upper to the lower reaches of the Yellow River the concentration of SOvaries from 7.5 mg/L to 108mg/L with an average of 81.0mg/L. The δ34SO also shows a wide range. However all δ34SO values of the Yellow River are within a positive range, +3.57-+11.1‰, with a mean value of +8.4‰. There is a nearly positive linear correlation between δ34SO and SO. As contrasted with the Yellow River, the Yangtze River shows a more narrow range of sulphate concentration,16.7-28.4mg/L, with a mean value of 20.5mg/L. The δ34SO ranges from -3.47 to +5.94‰ with the mean value of +2.3‰. No correlation between δ34SO and sulphate concentrations can be found in the Yangtze River water.Comparing the δ34SO of the Yellow and the Yangtze River water to that of water of major rivers in the world it can be seen that the Yellow River water may be the richest in sulfur isotopic composition possibly besides some of rivers in Australia. In contrast the Yangtze River water may be the poorest in δ34SO value. It reveals that these two great rivers, located in the north and the south of China,respectively and flowing through the hinterland of China continent from west to east, are obviously different in the two indexes of δ34SO and sulphate concentration. The Yellow River water is characterized by enriching of 345 with a high sulphate concentration, while the Yangtze River water is characterized by deficit of 34S with a lower sulphate concentration.The characteristics of sulfur isotopic composition of the Yellow River water may be mainly attributed to its unique occurring environment and its sources of sulfur besides the effect of low precipitation lasting for recent more than 10 years and the effect of low water level in 1993. In this paper the variation of δ34SO of the Yellow River water with the change of the environmental condition from the upper to the lower reaches of the river is described in detail.To summarize, owing to the great uplift of the Qinghai-Xizang Plateau the climate in the northwest area of China tends gradually to drying. Accompanied wnh this uplift other important geological processes, such as desertification, loess deposition and the formation of the Yellow River with a tremendous sand content. occurred in succession. The Yellow River water with a high sulphate concentration and a richer sulfur isotopic composition seems to be related to these processes, especially the uplift of the Qinghai-Xizang Plateau. As to the remarkable geochemical difference in sulfur isotope and sulphate concentration between the Yellow River and the Yangtze River can possibly be interpreted by separation of the Qiuling mountains.

黄河水的平均δ3+SO值为+8.4‰,是世界主要大河中硫同位素组成最重的河流;从上游至下游,河水的矿δ3+SO值规律性地逐渐增重,在龙门—三门峡河段达最大值。这反映了由于青藏高原隆起而引起的中国西北地区气候干燥趋势及随后出现的沙漠化、古盐湖蒸发岩的形成和黄土堆积环境对黄河水硫同位素组成的控制性影响。

 
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