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From the fact that the hydrogens of microbial methane originate in water, it may be deduced that with the reduction of HCO(superscript – subscript 3) a transfer of H atom occurs from the O atom to the C atom within HCO3 anions formed by the disassociation of dissolved CO2 in water, and furthermore, the formyl group forms.

由前人研究结果推断HCO(上标–下标 3)在脱去两个O原子的同时，可能发生了亲核重排，羟基H原子迁移到C原子上，形成了甲酰基HCO(上标-，使甲烷的第一个H原子来源于水。

A novel oil-soluble rare earth compound La-C(subscript i8 free of sulfur and phosphorus was synthesized as lubricant additive.

合成了1种不含硫磷的新型稀土化合物，该化合物在液体石蜡中具有较好的溶解性。

The decrease of the end-surface free energyσ(subscript e indicates that nano-SiO2 can improve the crystallization rate of PPS matrix.

偏光显微镜观察到PPS和复合材料均表现出球晶生长方式，与Avrami指数约等于3.0的计算结果基本吻合。

The results showed Antioxidant activity was very strong; at the concentration of 0.10g/L, The inhibition rate of superoxide anion free radical(Osuperscript – subscript 4 was 48.45%, The scavenging rate of hydroxyl free radical was 67.52%. Adding 0.1% of the extracts to lard, its antioxidant activity was better than that of 0.02% BHT. The extracts from peel showed higher activities than from juice.

结果表明：荸荠皮提取物的有明显的抗氧化活性，当浓度为0.10g/L时，对超氧离子自由基O(上标–下标 4的抑制率为48.45%，对羟自由基的清除率为67.52%，其0.1%提取物对猪油的抗氧化效果优于0.02%的抗氧化剂BHT，且其活性具有剂量效应关系。

B using press-volume technique, this paper studied the seasonal changes of water potential at saturated point (Ψ, water potential at turgor loss point (Ψ relative osmotic water content at turgor loss point ROWC(superscript thp, relative water content at turgor loss point RWC(superscript tlp, relative content of apoplastic water, bound water/free water V(subscript a/V, and the difference between (Ψ and (Ψ of Reaurnuria trigyna growing on heavy solonchack, non-salinized soil, and saline soil.

运用压力容积技术，研究了4种盐分生境下长叶红砂饱和含水量时最大渗透势Ψ(上标 sat 下标 s、初始质壁分离时的渗透势Ψ(上标 tlp 下标 s初始质壁分离时渗透水相对含量ROWC(上标 tlp、初始质壁分离时的相对含水量RWC(上标 tlp、质外体水的相对含量、束缚水与自由水的比值V(下标 a/V，以及饱和含水量时最大渗透势与初始质壁分离时的渗透势之差的季节变化。

In 'Huanong Bendizao', notable peaks were found for IAA in the seed, rind and pulp and seed ABA at the stage of fruit enlargement, GA(subscript 1/3) and ZR concentrations in the seed were relatively high and significantly increased during fruitlet growth and early fruit enlargement, whereas the levels of four endogenous hormones in the rind and pulp were relatively low and changed a little as time passed.

2华农本地早种子、果皮和果肉IAA及其种子ABA含量均在果实膨大期内出现明显峰值，在幼果阶段至果实膨大初期内种子GA(下标 1/3)和ZR含量均居较高并出现明显上升，对应的果皮、果肉4种内源激素水平均相对较低且变幅小。

But the ruled surfaces in R^3 or R(superscript 3 subscript 1) have vanishing Gauss curvature if and only if they are developable.

这与低维情形绝然不同，在R^3或R(上标 3 下标 1)中只有当直纹面是可展时，高斯曲率才为0。

The results indicated that under photooxidation condition, the addition of "RuBP regeneration system" and sodium glycolate increased qP and Φ, while R5P, DHAP and HCO(superscript – subscript 3) increased qN, compared to nonphotooxidative control.

结果表明，光氧化条件下外加"RuBP再生系统"和乙醇酸钠可提高qP和Φ，而R5P、DHAP和HCO(上标–下标 3)可提高qN，显示其对光氧化下叶绿体PSII活性有一定程度的保护作用。

The GRM expansion coefficients with q polarity were formed by the left or right sides of the corresponding triangle cells, and may be also formed by the terms containing q in the subscript of ci in each line.

进一步分析表明极性为q的GRM展开系数即为自上向下由各行脚标中含q的项。

In order to find high active pesticide containing heterocycle, six novel terephthaloyl bisthioureas Ⅲ(subscript a-f containing 1,3,4-thiodiazole were synthesized by the reaction of 2-amino-5-alkyl-1,3,4-thiodiazoles with terephthaloyl diisothiocyanate.

为寻找高活性的含杂环农药，由中间体5-烷基－2-氨基－1，3，4-噻二唑与对苯二甲酰基二异硫氰酸酯反应，合成6种新的含1，3，4-噻二唑环的对苯二甲酰基双硫脲化合物Ⅲ。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了