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Comparing with the result of methyl iodide in intense laser field, some differences are observed:(1) at the same laser field intensity, the highest charged fragment ion of methyl bromide was Br(superscript 3+), lower than I(superscript 6+) of methyl iodide;(2) the dehydrogenation channel was observed in the multiphoton dissociation or Coulomb explosion of methyl bromide, but was not observed in the case of methyl iodide;(3) HBr(superscript +) was observed, but there was no similar channel in the case of methyl iodide;(4) for methyl bromide, the valid charge distance of Coulomb explosion increases with the product of p and q; while in the case of methyl iodide, the distance remained almost the same;(5) the producing channel of CH(superscript + subscript m)(m=0, 1, 2) is different from the ionization-dissociation of methyl iodide in which the stepwise dissociation of CH3(superscript +) was thought to be the main channel, CH(superscript + subscript m)(m=0, 1, 2) of methyl bromide are mainly from the products of the direct dissociation of the dehydrogenated parent ions instead of the stepwise dissociation of CH3(superscript +).

与碘甲烷在强场中的实验结果对比发现：(1)在相同的激光场强下，碘甲烷电离解离的最高价碎片离子为I(上标 6+)而溴甲烷为Br(上标 3+)；(2)溴甲烷质谱中存在母体离子的脱氢产物CHBr和CHBr(上标 2+)，而对于碘甲烷，没有检测到这些通道，C-I键首先断开；(3)质谱中存在H^79Br和H^81Br，而碘甲烷的电离解离中不存在HI产物；(4)溴甲烷库仑两体爆炸的有效电荷间距随着两碎片电荷乘积的增大而增大，而对于碘甲烷此间距几乎不随电荷乘积变化；(5)CH(m=0， 1， 2)的主要生成通道可能与碘甲烷不同，不是来自CH3的顺序脱氢，而是来自脱氢母体离子的直接解离。

The total nitrogen was determined by ultraviolet spectrophotometer, and the absorbency needed to be emendated by A=A(subscript 220nm)-2A(subscript 275nm) The total phosphorus with sulfuric acid-ammonium stibium molybdate-ascorbic acid as the developer was determined by spectrophotometer at 700-720nm wave length.

用紫外分光光度法测定总氮，并采用校正吸光度A=A(下标 220nm)-2A(下标 275nm)对其进行定量；用钼－锑－抗作显色剂，在波长700~720nm下对总磷进行比色定量。

Methods The pyrogllol auto-oxidation was adopted to produce superoxide anion O(superscript - subscript 2; the system H2O2/Fe(superscript 2+) was used to produce hydroxy radical through Fenton reaction; and spectrophotometry was used to detect the clearing functions of drugs with different concentrations against O(superscript - subscript 2) and OH.

采用邻苯三酚自氧化法产生超氧阴离子自由基O(上标-下标 2，采用H2O2/Fe(上标 2+)体系通过Fenton反应产生羟自由基，用分光光度法分别测定不同浓度的药物对O(上标-下标 2)是和OH的清除作用。

When pH is 8.0, the flocculation rate can reach 91%. The experiment indicates that the evaluation system of kaoline is affected by PO(superscript 3- subscript 4) and Ca(superscript 2+) when the concentration of PO(superscript 3- subscript 4) is high in the substrate. As the real flocculation efficiency cannot be achieved, the evaluation system needs to be modified.

实验表明，培养基中PO(上标 3-下标 4)浓度较高时，现有的微生物絮凝剂高岭土评价体系会受到PO(上标 3-下标 4)与Ca(上标 2+)的影响，不能真实地表示微生物絮凝剂的絮凝效果，需要对现有评价体系进行修改。

The correlation coefficients between 0X, 1X, 0X(superscript ' subscript D), 1X(superscript ' subscript D) and boiling points for 80 alkenes, 39 alkynes and 169 aliphatic unsaturated hydrocarbons were made, which were 0, 999 3, 0, 999 6, 0. 995 5, respectively and better than those of the famous Kiers index (superscript mX.

其逆指数0阶、1阶指数0X(下标 D，1X，0X，1X分别与80个单烯烃、39个单炔烃、169个不饱和烃的沸点进行相关，复相关系数依次为0.9993，0.9996，0.9955，均优于著名Kier指数(上标 mX的回归结果。

Using the valence electron orbit energy E(subscript i and number of valence electron shell n(subscript i, a new connectivity topological index (superscript mE was proposed from δ.

利用价电子轨道能量E和价电子层数n，构建了新的原子点价δ，由点价δ构建价电子轨道能量拓扑指数E。

In the treatment of N(subscript 2-3)(600 kg/ha averagely applied three times), the NO(superscript - subscript 3)-N concentration in new-grown leaves was 92.66g/g, which was the highest in the three types of leaves on H2, and was still lower than the potential toxicosis dose for animals.

高氮水平和分次施肥是造成同一类型叶片NO(上标-下标 3)-N累积的主要原因；高氮分次施肥处理(N2.3)第二期收获的新生叶NO(上标-下标 3)-N含量最高，为92.66g/g，这一数值尚未达动物摄食的潜在致毒剂量。

Photosynthetic rate P(subscript n, transpiration rate, stomata conductance G(subscript s, active photosynthetic radiation, relative air humidity, air temperature and water use efficiency of three tree species Platycladus orientalis, Pinus tabulae formis, Tamarix chinensis were measured with a portable LI-6200 gas analysis system under natural conditions in the mountains adjacent to Lanzhou City.

利用LI-6200便携式光合测定仪对兰州市南北两山侧柏、油松、柽柳等3种绿化树种在自然条件下的光合速率P(下标 n、蒸腾速率、气孔导度G(下标 s、光合有效辐射、空气相对湿度、大气温度和水分利用效率进行了测定。

The results indicated that BaCe0.8Ho0.2O(subscript 3-α) sinters are of single-phase structures of orthorhombic perovskite. In the temperature range of 600~1000℃, the nonstoichiometric materials (x=1.03 and 0.97) have higher conductivities in wet hydrogen and wet air and better performances of hydrogen-air fuel cells than the stoichiometric one (x=1). In this series, BaCe0.8Ho0.2O(subscript 3-α) has the highest conductivities 2.10×10^(-2Scm^(-1) in wet hydrogen, 3.46×10^(-2) Scm^(-1) in wet air, at 1000℃ and the maximum power output density 122 mWcm^(-2 at 1000℃.

结果表明，在600~1000℃温度范围内、湿润氢气和湿润空气气氛中，该系列材料的电导率随温度和钡离子含量的变化均与以该系列材料为固体电解质的氢－空气燃料电池性能随温度和钡离子含量变化的次序一致，即：非化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1.03， 0.97)具有较化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1)高的电导率和氢－空气燃料电池输出功率密度，其中BaCe0.8Ho0.2O(下标 3-α)有最高的电导率（1000℃时、在湿润的氢气气氛中：2.10×10^(-2)Scm^(-1)；在湿润的空气气氛中：3.46×l0^(-2)Scm^(-1)）和最大的氢－空气燃料电池输出功率密度（1000℃时：122mWcm^(-2)）。

For sample 2, the fibres get together in mass because of the bad dispersion and present the phenomenon of pulling-out and debonding. The bonding is worse at the interface between the fibres and the matrix. The material shows tough fracture, with a low intensity: if σ(subscript ⊥)= 45.8 MPa,σ(subscript ∥)=19.4 MPa.

试样2由于纤维的分散性不好，大量聚集在一起，在压缩载荷的作用下，存在着纤维的拔出、脱粘现象，界面结合较差，材料呈现韧性断裂，强度较低σ=45.8MPa，σ=19.4MPa。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失