闭阻的

The control of the lead angle of the motor is studied. The power MOSFETs are used as a power amplifier which adopts a half-bridge circuit.

本文设计了变磁阻电机三相绕组的电流闭环控制系统，并研究了超前角控制问题。

Application of closed-loop gain shaping algorithm in rudder roll damping system.

闭环增益成形算法在舵阻摇系统中的应用。

In addition, the number of synaptic sites that express detectable levels of GABARs was decreased by approximately 50% after activity blockade, although there was no reduction in the total number of presynaptic contacts.

另外，突触点的数量表示，在活动阻闭后GABARs可见的水准下降了约50%，虽然突触前接触的总数没有下降。

Dynamic respiratory compliance and total respiratory resistance were measured before surgical incision, after sternal closure in the operating room, and after arrival in the intensive care unit. The following data were recorded: age, weight, preoperative pulmonary infiltrates, preoperative mechanical ventilation, evidence of increased PBF before surgery, duration of CPB, duration of aortic cross-clamp, duration of deep hypothermic circulatory arrest, use of steroids, and volume of ultrafiltrate removed.

分别在麻醉诱导后、手术结束关胸后和返回ICU后3个时间点测定患儿的肺动态顺应性和全肺阻力，并记录患儿年龄，体重，术前胸片浸润性改变情况，术前机械通气情况，术前肺血流量增高情况，体外循环时间，主动脉阻闭时间，深低温停循环时间和体外循环中超滤量等参数。

Right MCAO was induced in all animals by a 4-0 nylon thread with round tip inserted cranially into right internal carotid artery and maintained for 90 min. HSP70 mono-clone antibody immunocytochemistry was used to detect the changes of HSP70 expression in rat cortex at 6, 12,18,24,48 and 72h reperfusion in conjunction with histopathological analysis of rat brain.

应用HSP70单克隆抗体免疫组化染色检测大鼠再灌注6、12、18、24、48及72h脑皮质HSP70表达的变化；并与病理组织学改变进行对照研究。2.20只雄性新西兰大白兔随机分成对照组（n=10）及葛根素组（n=10），所有动物均阻闭腹主动脉肾下段20min，建立兔脊髓腰尾段缺血模型。

Specific blockade of extrasynaptic NMDA receptors may effectively prevent neuron loss following stroke and other neuropathological conditions associated with glutamate toxicity.

突触外NMDA受体特定阻闭，可能有效预防中风和其他带谷氨酸毒素之神经疾病后的神经元减少。

The research shows that the idetification of low resistively oil reservoirs should start with the sedimentolgoy, tra...

研究表明，低电阻率油层的识别应首先从沉积、圈闭以及层位的角度出发，确定低阻油层可能出现的区域，然后综合判别各种测井响应特征，最终正确识别出低电阻率油层。

According to the book of which was written by Sun Simiao in Tang Dynasty, it says :"The unsmoothness of circling of blood and Qi which blocks the pathways of meridians, is the main factor causing disease,", the therapeutic principle is "Clearing the pathways by using acupuncture, warming the meridians by using moxibustion."

文献研究通过对祖国医学有关头痛的研究现状及现代医学对血管性头痛的研究现状综述，认识到本病的中医病机为本虚标实，风、火、痰、虚、瘀为其主要致病因素，脉络闭阻，神机受累，清窍不利为其基本病机。

And then fill with water distribution, hydrophilicity, and Drag the small, high temperature, low temperature resistance, such as the excellent performance. 5, cooling tower chassis plate used for water catchment, and with automatic, manual cloth water, overflow, sewage and other devices, can be used for closed-cycle pool use without a separate pool.

填料具有水的再分布均匀，亲水性好、风阻小、耐高温、抗低温等的优良性能。5、冷却塔底盘可作集水盘用，并配有自动、手动布水、溢流、排污等装置，可作闭式循环水池使用，无需另设水池。

There are more than 3000 different kinds of valves available. The products series cover hydraulic turbine input liquid control butterfly valve, soft sealing gate valve, clamp butterfly valve; flange valve, expansion butterfly valve, bi-direction metal seal ing butterfly valve, tri-eccentric metal sealing butterfly valve, eccentric semi - sphere ball valve, eccentric dual -semi - sphere ball valve, and sluice gate, hydraulic slow-closing c heck v alve , v ent valve, adjusting valve, body eccentric valve, dual eccentric butterfly valve, varied eccentric butterfly valve, Check valve with little-resistance, slow-closing, noise-eliminating , butterfly valve with mid temperature and pressure, Other types of check valves and check valve gate 、 expansion joint, and being widely used in petroleum industry, chemistry, food, medicals, light industry, paper, water and electricity, ship and boat, steel and casting, Energy and Environment industry. The main valves are ever used in heat-supplying projects of National council office.

我公司主要产品有双向三偏心金属密封伸缩蝶阀、水轮机进水液控蝶阀、软密封闸阀、三维偏心全金属密封蝶阀、自动补偿双向硬密封蝶阀、耐高温金属密封蝶阀、液控缓闭止回蝶阀、对夹式蝶阀、偏心式蝶阀、伸缩蝶阀、偏心半球阀、偏心球阀、通风阀、调节阀、双偏心蝶阀、无销蝶阀、微阻缓闭消声止回阀、旋启式止回阀、防泥沙型蝶阀、自动补水阀、阀板可移动蝶阀、偏心缓闭止回阀、多功能水力控制阀、闸门、伸缩接头和管道伸缩器等三十大系列3000多个规格，广泛用于电力、石油、化工、食品、医药、轻纺、造纸、供排水、船舶、冶炼、能源、环保等行业的腐蚀性、非腐蚀性气体、液体、半流体及固体粉末容器和管网中。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。