变体的

1H NMR spectroscopic analysis of aromatic protons combined with theoretical analysis of molecular structures proved the existence of two rotational isomers at 300 K, as well as a rapid interconversion equilibrium at 330 K for both compounds Ⅰ and Ⅱ. However, only one conformer exists for compound Ⅲ and puerarin containing 7-phenolic hydroxyl instead of propyl in A-ring as the case of compounds Ⅰ and Ⅱ. Based on UV-Visible absorption data of neutral and basic solutions, and on the density function calculations, the 7-phenolic hydroxyl group in A-ring was found to be more acidic than the 4'-phenolic hydroxyl group in B-ring. The mechanism of derivation reaction and the structure-reactivity relationship of puerarin as an antioxidant were further discussed.

其中7-丙基葛根素Ⅱ属于新型取代衍生物；变温1H NMR和理论计算结果表明，在300 K时，葛根素和4'-丙基葛根素以单一构型存在；而7，4'-二丙基葛根素和7-丙基葛根素则存在两种核磁可分辨的旋转异构体，当温度升至330 K时，两种异构体可以相互转化；通过对比分析葛根素及其衍生物脱质子产物的紫外可见吸收光谱并结合理论计算，确定了A环上7位酚羟基比B环上4'位酚羟基先脱去质子，并由此进一步阐明了葛根素衍生化反应机理以及在抗氧化作用中可能的活性位点和结构活性关系。

According to range of the focal distance, dropping UV glue which is crystalline and unexpensive into lens cavity with UV rays, and then forms as soon as solidifies the convex lens. Combining UV curing glue convex lens and variable focus lens, the focal distance range achieves the 8.3~24.5 mm low focal distance effect.

於此之后根据变焦效果的需要，利用UV胶透光性佳、成本低，将UV胶滴定於透镜腔体中，形成一凸透镜，藉由变焦透镜与UV胶透镜结合，焦距变化达到8.3~24.5mm范围的低焦距效果。

Each implant was embedded in bone block: 23.4mm in height, 25.6mm in mesiodital length, 9mm in buccolingual width with cortical thickness of 1.3mm.

所有的植入体皆为长11mm、宽4mm，螺纹为0.5x0.5mm，以减少变因。每根植体假设种植在高23.4mm、远近心侧宽25.6mm、颊舌侧厚9mm的颚骨区块中，皮质骨厚度皆设为1.3mm。

Based on the leave of Pistacia vera L..Qualitative and quantitative analysis of phenol from Pistacia vera L. and effect on cell ultrastructure of Pistacia vera L tissue.The extracting technology phenol content from Pistacia vera L.

本文以阿月浑子植株与外植体为材料，采用化学方法与色谱-质谱方法对阿月浑子中总酚以及酚类物质成分进行了定性和定量分析，并用透射电镜观察了外植体褐变的发生对细胞超微结构的影响。

Veined,stockwork and alteration-sheathed gold ores have been found in the area,belonging to four genetic types:the volcanic hydrothermal ores related to early—middle Carboniferous volcanism; subvolcanic hydrothermal ores related to intermediate—acidic porphyry intrusions; hydrothermal ores to the granitic intrusion and dynamo- hydrothermal ores related to regional dynamic metamorphism along the faults.

矿石类型有含金石英大脉型、石英网脉型和蚀变岩型。矿床成因类型有4种：一为火山热液型，其成因与区内早—中石炭世火山作用有关；二为潜火山热液型，与中酸性斑岩体侵位有关；三为岩浆热液型，与花岗质岩浆的侵位有关；四为动力变质热液型，沿断裂带分布于蚀变玄武岩中，系区域动力变质作用的产物。

It is necessary for two kinds of controlled cooling processing to possess air cooling phase to separate ferrite from austenite, and, by means of this, polygonal ferrite forms, the carbon concentration of the retained austenite untransformed increases and results in the stability of retained austenite increased.

在二种冷却方式轧后控冷的过程中，必须有一个α/γ二相分离的空冷阶段，使多边形铁素体形成，未相变奥氏体中碳浓度增高，其稳定性增强。

Acupuncture and Moxibustion can cure the allergic diseasesⅠintermediated by IgE through decreasing IgE resulting from Interleukin－4 decreasing, which show it is one of the great important roles on long effects.

常年性变应性鼻炎患者的主要症状与体征为喷嚏、鼻塞、鼻痒、流清涕及鼻粘膜苍白水肿，针灸对其主要症状与体征均有明显的改善作用。

Results Following orchiectomy 7d,the amount of CGRP-immunoreactive nerve fibers in the AP of the rat increased significantly, with the tortuous varicose fibers more densely distributed than that of NOR and the amount of varicosities increased significantly, while the thick fibers were more thicker than that of NOR,and many thin fibers were sent out from the thick fibers, and the varicosities were more larger.

结果 睾丸摘除7d后，大鼠垂体前叶CGRP免疫反应神经纤维发生了显著变化，表现为膨体型纤维较正常组稠密，分支增多，迂曲成片，盘绕成网，分布更加广泛，膨体数量显著增多；粗纤维较正常组粗，且发出许多迂曲盘绕的细纤维，膨体形态变大。t检验显示，OX组与NOR组垂体前叶内CGRP免疫反应神经纤维的平均面积密度差异显著，OX＋V与NOR组差异显著。

The authors sug-gest that the decreased density of BDNF positive products in lamina II on the 3rd and 6th day was related with the degenerationof the nerve fibers and varicosities after section of the adjacent dorsal roots. On the 12th day, the remaining L6 dorsal roots un-derwent collateral sprouting compensatoryly and reestablished functional connection with target neurons.

作者认为3 d、6 d的减少主要与邻近背根节切除后，其神经纤维和膨体溃变有关；12 d时，保留的Ls背根逐渐侧支出芽，且与靶细胞再建功能联系，故脑源性神经营养因子阳性神经纤维和膨体数均趋于恢复。

By combining precision weight training with proper diet and nutrition. Loose body fat, gain strength, sculpted thighs, beautiful arms, fit and toned abdominal and buttocks.

通过将准确的力量训练和合理的饮食营养相结合，以减少体脂，增强肌肉力量，使腿部塑型，使手臂变得优美，腹部和臀部变得轮廓清晰健美。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。