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The crystal structure of BC in dried and wet states is studied by FT-IR, X-ray diffractometry and CP/MAS solid-state^13C NMR The cellulose Ⅰ(subscript α) and crystallinity index of the bacterial cellulose in dried state are very high compared with the other native cellulose such as cotton and Valonia.

用傅立叶红外光谱、广角X射线衍射、交叉极化／魔角旋转固体核磁共振(CP/MAS^13CNMR)分析细菌纤维素在干态下和湿态下的晶体结构。

In this paper, the analytic expressions of closed-loop voltage amplification factor A(subscript vmf for the reversed feedback amplifier are derivated by circuit analysis, without using feedback coefficient.

用电路分析方法，不再使用反馈系数，导出4种负反馈放大器闭环电压放大倍数A的解析关系式。

After treated with weedicide, much more oxygen free radical O(superscript - subscript 2 were produced in the two plant.

在适当剂量的药剂处理下，两种除草剂分别对细胞膜系统产生影响，使膜脂过氧化生成MDA；细胞外渗液的电导率增大。

Excessive O(superscript – subscript 2) could lead to the damage of cytomembrane, and as a result, the cytomembrane permeability was increase finally. On the other hand, the two kinds of weedicide could damage cell construct, expand cell interspaces, and shrink the guard cell.

灭狼毒"和"灭棘豆都可以使狼毒和棘豆叶片栅栏组织排列呈疏松变化趋势，细胞间隙增大，叶肉细胞结构破坏，形成大的空腔；保卫细胞萎缩，气孔下腔增大。

The Mn(superscript 2+)-BrO(superscript - subscript 3)-H(superscript +)-Act oscillating systems of Chinese traditional medicine compounds (Siwu Decoction and Windflower Decoction) are studied at different concentrations and different temperatures by TAM Air 8-channel calorimeter.

用微量量热法对中药复方四物汤和白头翁汤的Mn(上标 2+)-BrO3-H-Act振荡体系进行了研究，得到了四物汤和白头翁汤分别在不同浓度、不同温度下的振荡谱图和310K时体系发生振荡的浓度范围。

The results indicated that the treatment of increasing top dressing N applying ratio could increase endogenous hormones zeatin riboside ZR(subscript S, isopentenyl adenosine contents and decrease abscise acid contents in flag leaves, and improve photosynthate synthesis, which could increase sucrose contents in flag leaves and supply aplenty of carbon sources for starch synthesis in grains.

结果表明，氮肥后移的处理旗叶中ZR、iPAS含量的增加及ABA含量的减少，有利于光合产物的合成；蔗糖含量较高，为籽粒合成淀粉提供了充足的碳源物质。

The combination of effective components in Acorus tatarinowii has a better protective effect on Aβ(subscript 25-35)-induced PC12 cell injury than Acorus tatarinowii.

石菖蒲有效成分的配伍，能更好地发挥保护PC12细胞免受β淀粉样蛋白毒性损伤的作用。

Results of P-uptake experiments show that 11 isolates have denitrifying and P-uptake ability, and JB2 and JB3 identified as Pseudomonas and Alcaligenes have the best P-uptake ability. After 8 h, 13.76 mg/L and 11.85 mg/L PO(superscript 3- subscript 4)-P can be removed.

结果表明有11株菌均具有不同程度反硝化吸磷能力，其中假单胞菌属的JB2和产碱菌属的JB3脱氮除磷效果最好，8h后磷的去除量分别为13.76mg/L和11.85mg/L。

The results showed that: Under salt stress, it was found the content of Na(superscript +), Cl(superscript -), SO(superscript 2- subscript 4) and Na(superscript +)/K(superscript +) ratio in almond rootstocks organs all went up with increased salt stress and longer treatment days, K(superscript +) content changed irregularly. But K(superscript +) content in every organ of A. commans persicoides rootstocks was higher than that of other two almond rootstocks; the ratio of Na(superscript +)/K(superscript +) in Amygdalus communis L. was higher than that of other two rootstocks.

研究结果表明，盐胁迫下，3种砧木根、茎、叶中Na，Cl，SO(上标 2-下标 4)含量及Na/K比均随盐浓度的增加和处理时间的延长而增加，K含量变化规律不稳定，但桃扁桃根、茎和叶片中K略高于其他两个品种；石头扁桃根、茎、叶片中Na/K比值高于其它两个品种，桃扁桃中Na/K比值最低。

The extracts are proanthocyanidins identified by anthocyanidin reaction and JR-spectra. Number-average molecular weight M(subscript n of the extracts are respectively 1705 (95%) and 798 (5%) determined by GPC and VPO.

用凝胶渗透色谱法和蒸汽渗透压法测定产物的相对分子质量M(下标 r及其分布，产物中95%以上组分的数均相对分子质量M(下标 n为1705（相当于聚合度4~5），其余组分的M，为798。

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