降压

Both workpiece rotation and target rotation adopt a modular riving circuit of dynamos that produces a direct current. Armature stepping down and starting can be achieved by PLC the software procedure.

工件旋转和靶旋转均采用模块化的直流电机驱动电路，通过PLC软件程序实现电枢降压软起动。

rutaecarpine pharmacological effects and its related mechanism: rutaecarpine the heart positive inotropic, positive changes in the role and the heart protective effect, which with its promotion of calcitonin gene-related peptide release; rutaecarpine alkali have vasodilative and hypotensive effect, its mechanism mainly related to endothelial cells Ca2 +-NO-cGMP pathways and calcitonin gene-related peptide release; rutaecarpine to relax the anal sphincter, gastrointestinal motility inhibition of stress ulcer and ulcerative colitis have therapeutic effect; rutaecarpine on cerebral ischemia-reperfusion injury has a protective effect, which instead of increasing the concentration of calcitonin gene-related peptide-related; rutaecarpine inhibits platelet aggregation and arterial thrombosis; In addition, rutaecarpine Alkali also anti-inflammatory and analgesic, anti-tumor and other pharmacological effects.

综述了吴茱萸次碱的药理作用及其相关机制：吴茱萸次碱对心脏有正性肌力、正性变时作用和心脏保护作用，这与其促进降钙素基因相关肽释放有关；吴茱萸次碱有扩血管和降压作用，其机制主要涉及内皮细胞Ca2+-NO-cGMP途径和降钙素基因相关肽的释放；吴茱萸次碱能松弛肛门内括约肌，抑制胃肠运动，对应激性溃疡和溃疡性结肠炎也有治疗作用；吴茱萸次碱对脑缺血再灌注损伤有保护作用，这与其增加降钙素基因相关肽浓度有关；吴茱萸次碱能抑制血小板聚集和动脉血栓形成；此外，吴茱萸次碱还有抗炎镇痛、抗肿瘤等药理作用。

During complex endoscopic nasal surgery,severe bleeding may occur and it is difficult to stop it.52 patients with sinuitis or polypswere divided into two groups ran domly,control group and control hypotension group.

控制性降压麻醉在鼻内窥镜手术中的应用王亚辉，王家和，周兵，韩德民，李小葵，王砚华，张炳熙摘要鼻硬性内窥镜直视下进行各类复杂困难手术，出血多，止血困难。

At this point, control circuit control high-power switch will be presented in a high-voltage direct-current high-frequency batch sent to high-frequency transformer primary and went on to the secondary loop after ventriclar hifrequency rectifter-voltage alternating current, by filtering is converted to a low-voltage stoichiometrical DC.

此时，控制电路控制大功率开关将高压直流电按照一定的高频频率分批送到高频变压器的初级，接着把从次级线圈输出的降压后的高频低压交流电，通过整流滤波转换为低电压强电流的直流电。

Microinjection of norepinephrine (NE, 30 nmol) into the subnucleus commissuralis of nucleus tractus solitarii of rabbits evoked a decrease of mean arterial pressure and heart rate. These effects were attenuated by application of naloxone (3 nmol) on the same area,which by itself showed no effect on MAP and HR.

于杂种白兔的孤束核联合亚核内微量注射去甲肾上腺素，引起血压降低和心率减慢，将小剂量阿片受体阻断剂纳洛酮注入CNTS，本身不影响血压与心率，但减弱NE在CNTS中的降压降率幅度。

Yper- tensive effects of these drugs might be related to reducing intra- cellular calcium in vascular smooth muscle cells.

提示这些药物的降压作用可能与降低血管平滑肌细胞内钙含量有关。

The molecular composition measurement (GC/MS analysis) of the products formed in the different experimental stages showing that some sterane and terpane molecular parameters in crude oils are related to evaporation fractionation.

为了解油气成藏过程中常见的降压和气洗作用对甾、萜烷分子组成的影响，开展了PVT模拟实验。

The morning venous blood was collected to determine the serum level of glyceryl trinitrate, cholesterol and the plasma level of Ox-LDL, malondyladehyde and superoxide dismutase before administration and 8, 16 weeks after.

本研究旨在探讨高血压病患者是否存在血浆Ox-LDL增高现象，口服化学结构无巯基的血管紧张素转换酶抑制剂降压的同时，是否会对Ox-LDL产生影响。

Objective To observe the effects of urapidil,phentolamine,glyceryl trinitrate or phenylephdrinum on the isolated tracheal smooth muscle in rabbit.Methods KCl,Ach and electrical stimulation were used to induce the contraction of the isolated rabbit tracheal smooth muscle.

目的 观察常用降压药和升压药对气管平滑肌张力的影响，探讨其作用机制方法观察不同浓度乌拉地尔对氯化钾、乙酰胆碱、电脉冲三刺激因素诱发的兔离体气管平滑肌收缩力变化的影响；观察酚妥拉明、去氧肾上腺素和硝酸甘油对电刺激诱发的气管平滑肌收缩力的影响。

Conventional start methods include direct start and reduced-voltage start cant fit the request for production because they have some localization such as huge current impact, bad adaptive faculty for load, uncontinuous start current, heavy maintaining work.

传统的直接起动方式与降压起动方式因各有其局限性如不能有效减少起动时对电网的大电流冲击，对负载适应能力差、起动电流不连续、维修工作量大等等已越来越不能适应生产发展的要求。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。