选用

Under normal circumstances, needle valve materials shall be in accordance with its parameters and properties of the materials selected in accordance with this standard and shall comply with the relevant product standard requirements.

一般情况下，针型阀门材料应根据其参数及材料的性能按本标准选用，并应符合有关产品标准的规定。

Aimming at the fuel control requirement of micro-turbojet,the automobile's electric fuel pump with adaptable improvement is chosen as fuel-feed system.The performance of fuel pump and the technical difficulty of flux control as the speed of pump doesn't be measured are analyzed.Using Philips 83C552 MCU as the main control chip,the system adopts voltage negative feedback combined current compensation instead of rotation speed negative feedback and a PWM convertor to design the flux closed loop control system.

针对微型涡喷发动机的燃油控制要求，选用汽车用电动油泵进行适应性改进作为供油执行装置，详细分析了电动油泵的特性及泵转速无法测量情况下流量控制的技术难点，并以83C552单片机为核心，采用电压负反馈加电流补偿代替转速负反馈、电机通过PWM驱动的方法设计电动油泵流量闭环控制系统。

The preliminary chromatogram data were resolved with Mallat algorithm of wavelet analysis theory. This method that resetting the high frequency signals, reconstructing low frequency and then correcting the background signals in the original signal was to avoid the data skewness with negative digital points after background correction and achieve the baseline correction; according to the study and analysis of simulated data including curve background and real data of the needle-plate and free metal partials insulation defects, the method is effective; the best wavelet function of the background correction is Db5 and the best resolution times of the background correction is 8 for chromatogram data of SF_6 decomposition products, based on the calculation with different wavelet functions and resolution times.

在初步获取的气相色谱数据基础上，运用小波分析技术中的Mallat算法对色谱数据进行小波分解，采取将高频信号置零，重构低频背景信号，再用原始信号扣除背景信号的方法，并对背景信号进行纵向平移以避免扣除后出现负数据点造成色谱峰失真的题目及达到色谱图基线校正的目的；通过对含曲线背景信号的模拟色谱数据和针-板、自由金属微粒缺陷下的真实数据的计算研究表明，该方法的应用是有效的；并通过对不用小波函数和不同分解次数的背景扣除计算，确定了SF_6气体放电分解组分色谱背景扣除所选用的最佳小波函数为Db5小波和最佳分解次数为8次。

Penis residual stump was advanced to anterior portion of the newly restoration penile body as "glans"; To take full layer skin of penis from post-operating patients to observe neurofibril regeneration by light microscopy, electron microscopy and scanning electron microscopy; To determine sensation recovery by physical examination; To check erectile function with NEVA System.

修復术中通过离断阴茎浅、深悬韧带，並继续分离部分海绵体脚，使原固定於耻骨下支的阴茎海绵体充分分离，以使阴茎更为延伸；用含血运的脂肪瓣填塞耻骨前间隙，保证术后远期阴茎的有效长度；选用合適的带血管蒂皮瓣转移覆盖海绵体，塑造更为逼真的龟头和冠状沟样外形。

The content of this research selects udndata.com, analyze the news report of domestic ERP industry by content analysis. By count the who, what, when, where and why present in the news to analysis vendor present situation, enterprise implemented , ERP relevantactivities and incidents, understand the state of development of Taiwan ERP industry.

本研究资料来源选用联合知识库的电子资料库，透过内容分析法来分析国内ERP 产业的新闻报导，藉以调查ERP 供应商现况、企业导入状况、ERP 相关活动与事件，了解台湾ERP产业的发展状况。

Most of the experiment rats whose autonomic nerves controlling uterus were cut off couldn′t pregnancy,nidation was delayed in the other rats.

选用成年雌性 Wistar大鼠，采用外科手术方法分别在妊娠前和妊娠后切断支配大鼠子宫的植物性神经，观察了切断神经对 Wistar大鼠着床的影响，并用常规组织学方法观察了子宫肥大细胞数的变化。

The results showed that the optimum enzymatic conditions were: choosing papain, with substrate concentration 16%, enzyme concentration 4000U/g, hydrolysis time 6h, and the optimum conditions for the enzymatic hydrolysate of porcine blood to synthesize nitrosyl heme-polypeptide were: NaNO2 added 1.6%, pH5.00 and reaction time to 12min at 55℃.

试验表明，以选用木瓜蛋白酶效果较好，最佳酶解条件为：底物浓度16%，加酶量4000U/g，水解时间6h；酶解液合成色素最佳参数为：pH5.00，反应时间12min ，反应温度为55℃，NaNO2 的添加量为1.6%。

nodular dermal vasculitis in lower extremities are often seen clinically in middle-age women, and are evoked by many causes. Some laboratory examinations have abnormal outcomes and we think these are related with autoimmune reactions of nodular dermal vasculitis. We can make diagnosis with clinical character of erythema and nodose lesions in lower extremities, laboratory examinations and histopathology inspection. Antibiotics, non- Steroid anti-inflammatory drugs, anti-tubercle drugs and corticosteroids are effective drugs.

结节型皮肤血管炎多发于中年女性；结节型皮肤血管炎病因复杂，可能是由于细菌、真菌、病毒、结核、药物等所引起，也可为某些全身性疾病的皮肤表现；实验室指标异常改变可能与疾病免疫反应有关；结节型皮肤血管炎诊断以双下肢红斑结节性损害的临床特点，结合实验室及组织病理学检查可确诊分型；结节型皮肤血管炎针对病因选用抗生素、非甾体抗炎药、抗结核药、皮质类固醇激素等治疗有效。

One of its main processing technology is mechanical Super Micro Mill, whose lash style is more chosen by nonmental mine industry at home.

机械超细粉碎是超细粉体最主要的加工技术之一，机械冲击式超细粉碎机是国内非金属矿行业选用较多的超细粉碎设备。

Organic substances (diethylene glycol, glycol methyl ether and methyl ethyl ketone) were used as nonsolvent additives and N-methyl-2-pyrrolidone used as a solvent in membrane preparation. The effects of PPESK concentration, the type of additives and the NSA concentration in casting solution on the morphology and performance of the PPESK hollow fiber ultrafiltration membrane were systematically investigated.

以PPESK为膜材料，NMP为溶剂，水为凝胶剂，选用乙二醇甲醚、一缩二乙二醇和丁酮为非溶剂添加剂，系统研究了聚合物浓度、添加剂种类和含量对PPESK中空纤维超滤膜结构和性能的影响，制备了一系列具有不同孔径和通量的中空纤维超滤膜。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐