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     The Study of Variational Transition State Theory on the Reactions, Cl+HBr, Cl+DBr, Br+HI and Br+DI
     变分过渡态理论对Cl+HBr,Cl+DBr,Br+HI及Br+DI反应的研究
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     SnO2 and Al2O3 respectively make the first activation energy decrease 13.18 kJ/mol and 16.25 kJ/mol, and make the second activation energy decrease 40.49 kJ/mol and 43.96 kJ/mol.
     SnO2和Al2O3对CL-18的两个活化能影响较大,使CL-18的第一活化能分别降低了13.18kJ/mol和16.25kJ/mol,第二活化能分别降低了40.49kJ/mol和43.96kJ/mol;
短句来源
     by the addition of masking agent C_2 to the wastewater containing Cl~-≤10000mg/L and COD: Cl~-≤1: 100, the analytical result is also confident.
     改用C_2掩蔽剂后,对Cl~-≤10000mg/L、COD:Cl~-≤1:100的水样测定结果仍是可靠的。
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     The Coriolis Coupling Effects on the Non-adiabatic Reaction of Cl+H_2→H+HCl
     Coriolis耦合对Cl+H_2→H+HCl非绝热反应的影响(英文)
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     Study on the Desensitization of CL-20 with TATB
     TATB对CL-20降感研究
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     In two test sets T.
     在T.
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     ; Cl.
     Cl.
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     48 bands was from 4 strains of E.
     E.
     Cl.
     Cl.
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     Effect of chloride on photosynthesis of tobacco
     Cl烤烟光合作用的影响
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  tocl
Determination of TOCl, TOBr and TOI in drinking water by pyrolysis and off-line ion chromatography
      
Results showed that the pyrolytic analyzer using pure O2 and off-line IC combined with a standard TOX carbon (coconut-based) achieved the most complete recovery of TOCl, TOBr and TOI for both model compounds and real samples.
      
Methods were developed for analyzing total organochlorine (TOCl) and total organobromine (TOBr) in different kinds of water, sediment and biological samples.
      
The detection limits for TOCl and TOBr are respectively 5 and 0.5 μg l-1 for water (sample size 100 ml) and 0.3 and 0.1 μg g-1 dw (sample size 1 g) for sediment and biological samples.
      
The correction tocL is about 10% independent of temperature and independent of flow direction.
      


In order to study the adsorption of cations and anions by red soils in relation to the electric charge of the soil, electrolyte solutions of KCl, NH_4Cl and K_2SO_4 in concentrations of 0.001, 0.01 and 0.1N were equilibrated with soil samples at different pH. Two soil samples were used for the study, one was red earth with a permanent negative charge of 7.4 m.e. per 100 gms. and a positive charge of 2.8 m.e. per 100 gms. at pH 2 and the other was a lateritic soil with a permanent negative charge of 3.3 m.e....

In order to study the adsorption of cations and anions by red soils in relation to the electric charge of the soil, electrolyte solutions of KCl, NH_4Cl and K_2SO_4 in concentrations of 0.001, 0.01 and 0.1N were equilibrated with soil samples at different pH. Two soil samples were used for the study, one was red earth with a permanent negative charge of 7.4 m.e. per 100 gms. and a positive charge of 2.8 m.e. per 100 gms. at pH 2 and the other was a lateritic soil with a permanent negative charge of 3.3 m.e. per 100 gms. and a positive charge of 5.8 m.e. per 100 gms. (iso-electrie point at about pH 4.7)

本文报道了广东的砖红壤和江西的红壤的电荷性质和在不同pH条件下对不同浓度的阴、阳离子的吸附,讨论了离子吸附与电荷性质的关系。砖红壤和红壤同时带有负电荷和正电荷(砖红壤的等电点在pH4.7左右),因而同时吸附阳离子和阴离子。阳离子的吸附取决于土壤的负电荷;阴离子的吸附取决于正电荷,而不是取决于静电荷。pH对离子吸附的影响,主要是pH变化的直接影响,其次是通过改变表面电荷所产生的间接影响。电解质浓度增加时离子吸附量增大,但相对吸附量(占溶液中离子数量的%)减小。红壤对SO_4~-离子的吸附量大于对Cl~-离子的吸附量。pH较高时Cl~-出现负吸附。土壤去除游离氧化铁后,只在pH很低时才吸附极少量Cl~-离子。吸附等量阳离子和阴离子时的pH称为等离子点。对1:2型电解质的等离子点高于1:1型者;1:2型电解质浓度增大时土壤的等离子点降低;1:1型电解质浓度增大时江西红壤的等离子点降低,而砖红壤者不变。在相同情况下,砖红壤的等离子点较江西红壤者为高。土壤去除游离氧化铁后等离子点显著下降。

The chlorine chemisorption geometry fcr both Si(lll) and Ge(lll) surface is considered. Previous theoretical calculations could not give the difference between Cl chemisorbtion on Si (111) and Ge(lll), which was shown by the effects observed in the photoemission with polarized radiation. In this paper the chemisorbed site is determined by the minimization of the total energy calculated by the charge density selfconsistent extended Huckel method. The present calculation shows that Cl adsorbs on the top site of...

The chlorine chemisorption geometry fcr both Si(lll) and Ge(lll) surface is considered. Previous theoretical calculations could not give the difference between Cl chemisorbtion on Si (111) and Ge(lll), which was shown by the effects observed in the photoemission with polarized radiation. In this paper the chemisorbed site is determined by the minimization of the total energy calculated by the charge density selfconsistent extended Huckel method. The present calculation shows that Cl adsorbs on the top site of Si (111) surface with covalent binding, which agrees quite well with experiments. While for the case of Ge, calculation shows that both the top site and three-fold site of Cl ehemisorption on the Ge(lll) surface are possible. Since the photoemission by p-polarized and s-polarized radiation did not differ too much for Cl on the Ge(lll) surface, it can not rule out the possibility of top adsorbed site for

考虑了Si(111)和Ge(111)面吸附Cl的几何构形,本文采用集团模型,用电荷自洽的EHMO方法,对Si(111)和Ge(111)面,分别用能量极小的原则,确定了Cl的化学吸附位置。计算结果表明,对于Si(111)面,Cl是在顶位被吸附,形成共价结合,与实验结果一致。对于Ge(111)面,计算表明在顶位和三度开位上都能吸附Cl,与以前结论有一些不同,但本文认为偏振光电子谱的实验结果并不能完全排除Cl在Ge(111)面上顶位吸附的可能性。希望有其他实验能对Cl在Ge(111)面上的吸附作进一步的观察。此外,还计算了Cl在Si(111)面顶位上的吸附和它在Ge(111)面三度开位上的吸附时的状态密度,和实验结果进行了比较,相符甚好。

Rate constants of electron-attachment to Cl_2 in mixtures of Ar/CI_2 have been measured over the mean electron energy range 3-5 eV. The results show that electron-attachment rate constant is (3.2 ± 0.4) × 10-10cm3/sec at a mean energy of 3.5eV. The effect of variation of the mean electron energy has also been investigated. The experimental results agree very well with that of Los Alamos investigators.

在电子平均能量为3—5电子伏的范围内,测定了Ar/Cl_2混合物中,电子对Cl_2的离解附着速率常数。结果表明,电子平均能量为3.5电子伏时,离解附着速率常数为(3.2±0.4)×10~(-10)厘米~3/秒,并考察了速率常数与电子平均能量的关系。这些实验结果与最近Los Alamos国家实验室研究者们的类似工作的结果是一致的。

 
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