甲醛

The bone resection was divided into four steps via FLA:① drilling of the jugular tuberculum;② partial mastoidectomy;③ removal of the occipital condyle;④resection of the lateral mass of C1 with mobilization of the vertebral artery. After each step of the bone resection was completed, the exposed area of the central clival depression and the area of exposure 15 cm above the central point were calculated.

利用CT和立体定向仪对20例甲醛溶液固定的头颅标本标记斜坡中央凹陷区中心点，采用FLA入路，骨切除分四步进行：磨除颈静脉结节，部分乳突切除，枕髁全切，C1侧块切除；分别于每一步骨切除及血管神经牵拉完成后测量斜坡中央凹陷区的显露范围和位于中心点上方15 cm处术者的操作范围。

Methods Central point at the central clival depression was marked with the help of CT and stereotactic apparatus in 20 formalin-fixed cadaveric heads. The bone resection was divided into four steps via FLA:① drilling of the jugular tuberculum;② partial mastoidectomy;③ removal of the occipital condyle;④resection of the lateral mass of C1 with mobilization of the vertebral artery. After each step of the bone resection was completed, the exposed area of the central clival depression and the area of exposure 15 cm above the central point were calculated.

利用CT和立体定向仪对20例甲醛溶液固定的头颅标本标记斜坡中央凹陷区中心点，采用FLA入路，骨切除分四步进行：磨除颈静脉结节，部分乳突切除，枕髁全切，C1侧块切除；分别于每一步骨切除及血管神经牵拉完成后测量斜坡中央凹陷区的显露范围和位于中心点上方15 cm处术者的操作范围。

Aquatic products ; Antibiotics ; Heavy metal ; Formaldehyde ; Clonorchis sinensis ; Vibrio parahaemolyticus

水产品；抗生素；重金属；甲醛；肝吸虫；副溶血性弧菌

Application of organic acid catalysis to the polymerization of pyrroles and pentafluorobenzaldehydes, with the xylene as reaction medium instead of expensive collidine used in the conventional methodology, resulted in a relatively high yield of TPFPPH〓.

本研究利用有机酸如氯乙酸催化吡咯和五氟化苯甲醛聚合，并以二甲苯替代传统方法所用的昂贵溶剂2，4，6-三甲基吡啶，获得了产率较高的TPFPPH〓。

The total RNA from brain tissue of substantia nigra of PD rats is extracted at the 1st, 2nd, 4th and 8th week and comparison is made between it and that from normal rats. The total RNA, after RNA formaldehyde degenerated sepharose electrophoresis and separation and Northern transfer, is adsorbed unto colloxylin membrane. Then ECL labeled Selenoprotein P and an unknown gene fragment are used as probes to hybridize with the RNA on the colloxylin membrane. And the hybridized result is obtained with enzyme-linked immunosorbent assay. Finally, analysis of OD is made using ONE-Dscan software.

分别提取1周、2周、1月、2月的帕金森大鼠（各8只）黑质区脑组织总RNA，并取相对应时间的正常大鼠的脑组织总RNA作为对照，经RNA甲醛变性琼脂糖凝胶电泳分离后，通过Northern转移，将其吸附在硝酸纤维素膜上，然后利用ECL标记的Selenoprotein P和一段未知基因为探针，与硝酸纤维素膜上的RNA分子进行杂交，再通过显影取得杂交的结果，应用ONE-Dscan软件进行光密度值分析。

An unusual intramolecular nucleophilic reaction of α carbon anion of crotonate was discovered and the imidazo[1,5 a ]pyridine derivatives were sythesized with a novel tandem reaction.

发现 5 咪唑甲醛(1)与γ溴代巴豆酸酯(2 )在弱碱条件下首先进行亲核取代反应生成 3，继而生成γ碳负离子并转移到α位，然后进行分子内亲核进攻成环、脱水生成 4的串联反应。

A novel planar chiral diferrocenylimine-diols 6 was synthesized by the condensation of R, S(subscript p-1-(2-diphenyl hydroxyl methyl) ferrocenylethylamine [R, S(subscript p-4] with phthaldehyde in anhydrous ethanol, and was crystallographically characterized.

通过R，S(下标 p-1-（2-二苯基羟甲基）二茂铁乙胺[R，S(下标 p-4]和对苯二甲醛在无水乙醇中的缩合反应合成了一种新型平面手性双二茂铁亚胺二醇化合物6，并经X-射线衍射分析它的晶体结构。

The depths, diameters, lengths of the external jugular veins and their surrounding structures were measured and observed on 30 infant cadavers(60 sides) and were compared with those of the great saphenous veins and the median cubital veins.

为临床儿科静脉穿刺抽血提供解剖学依据，笔者在30例（60侧）甲醛固定的小儿尸体上解剖，观测了颈外静脉的深度、外径、长度及毗邻关系，并与大隐静脉、肘正中静脉进行了对比。

Ester of poisonous armour of different sulfur cyanic acid, formaldehyde and vulcanization hydrogen are decomposed to wait in soil.

在土壤中分解成有毒的异硫氰酸甲酯、甲醛和硫化氢等。

Potassium zinc phosphate was used as the catalyst for Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate.

以磷酸锌钾为催化剂，催化苯甲醛与氰乙酸乙酯进行Knoevenagel缩合反应。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。