本文采用相转换法制备了聚偏氟乙烯不对称微孔膜。
In this paper, asymmetric microporous poly (vinylidene fluoride) (PVDF) membranes were prepared by phase-inversion process.
将谐波电流从低压侧的两相转换到高压侧的三相,建立谐波负荷模型。
Harmonic load model is established by transforming the harmonic currents from two-phase at LV side to three-phase at HV side.
目的探讨血清对白念珠菌菌相转换特异基因HYR1上游启动子活性的影响。
Objective To study the effect of serum on promoter activity of Candida albicans yeast-hyphal regulational gene(HYR1).
它们能够降低医学倒退的发生率或者延缓倒退-抵消相转换的医学形式,但是,药物并不能够改变这些症候。
They can reduce the incidence of relapse or extend time between relapses in the relapsing-remitting form of MS but symptoms are not changed by the drugs.
结论:ALS4基因和ALS9基因可能在白念珠菌的酵母相向菌丝相转换和体外生物膜形成中起重要作用。
Conclusion The ALS4 and ALS9 gene may play an important role in Candida albicans transformation from yeast to germ tube and in biofilm formation in vitro.
etl常用于从源系统中提取数据,将数据转换为与目标系统相兼容的格式,然后将其装载到目标系统中,例如数据仓库或者数据市场。
ETL is often used to extract data from the source system, transform data into a compatible format with the target system, and then load into a target system, such as a data warehouse or data mart.
只要生成时候节省的时间胜过转换所花费的时间,相权衡之下依然是划算的。
This would be a net win if the time saved during generation exceeded the time spent in conversion.
更新2是一个SQLselect语句,其中包含与更新1相同的XMLQUERY函数、转换表达式和where子句。
Update 2 is an SQL SELECT statement with the same XMLQUERY function, transform expression, and WHERE clause, as in Update 1.
Bailey相信公司的企业文化转换已经开始了,索尼新的NEX - 5相机就是一个例子。
Bailey believes that the company's culture is starting to shift, pointing to Sony's new NEX-5 camera as one example.
二是以往通常用投影转换的方法来求得筒体和接管的相贯线,这种方法放样困难、繁复且精度不高。
Second, we used to find out the intersect lines of shell and nozzles by the means of projection transform.
随着能量在2012年相继完成转换,地球时间会在2013年发起进入第四密度的航行。
With the energy sequencing complete in 2012, Timeship Earth will launch her voyage into fourth dimensional time in 2013.
通过二、三值逻辑开关函数间的转换,系统地描述了三相CSR三值逻辑PWM信号发生中的状态切换;
A systematic description of the state switching in trilogic PWM signal generation of three-phase CSR by using the conversion between bilogic and trilogic switching functions.
其二则为能量转换和电子冷却领域中常见的多孔介质两相流动问题。
The other area concerns twofers flow and heat transfer in porous media as widely encountered in energy conversion and electronics cooling.
一个高度敏感的接收器将每个反射脉冲转换,使其与其他测量脉冲波相平均。
A highly sensitive receiver converts each reflected pulse to waves that are averaged with other pulse measurements.
该技术旨在将扫描的工程图像转换为与CAD系统相兼容的矢量数据格式。
Engineering drawing recognition technique aims at converting scanned engineering drawing images into vector formats compatible with CAD systems.
共原理为将系统调节信号经定时器转换为移相脉冲串去触发可控硅进行三相全控整流。
The principle is that the system adjustment signals are changed into shift-pulses via a timer so as to trigger SCR for three-phases full-controlrectification.
聚合物高分子溶液具有网链结构,运动中显示出的黏弹效应直接关系相界面能量转换。
The polymer solution has the net chain structure, it shows the effect of viscoelasticity in the movement which directly relates to the interface energy conversion.
细胞分裂周期运行和不同时相的转换通过CDC25磷酸酶去磷酸化和激活周期蛋白依赖性激酶(CDK)复合物来调控。
Cell Cycle Progression through the cell division cycle and transitions between various phases are regulated by using CDC25 phosphatases to activate specific cyclin-dependent kinase(CDK) complexes.
研究表明相电流差突变量、稳态电流序分量等选相元件在发生某些跨线及转换性故障时会误选相。
The fault phase selectors, including the phase current difference suddenly-change and the sequence current, may misoperate in some cross country faults and conversion faults.
高效发电机。一种发电机系统包括三相ac电机和应用低导通电阻MOSFET开关的有源整流器电桥,用于将来自电机的AC电流转换为DC电流。
A generator system that includes a three-phase ac machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the ac current from the machine to a DC current.
并且给出了移相全桥zvs - PW M功率转换电路的关键元件的设计方法。
And it has given the design method of the essential part in the phase shifting full bridge ZVS-PWM power conversion electric circuit.
大功率设备或三相设备可定制转换测试箱。
High power facility or triphase facility can be ordered together with transferring testing box.
将电气线路的三相线及中线通过零式电流互感器后,零式电流互感器会把剩余电流信号转换为电压信号。
Putting the three-phase lines and middle line of the electrical circuit through the zero current transformer, the residual current signal will be converted into the voltage signal.
电力变换器主电路部(3),其根据该脉冲宽度调制波对开关元件进行驱动,将直流电压转换为三相交流电压;
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
波长转换元件110可(例如)是磷光体板,它的折射率与光学集中器108相匹配。
The wavelength converting element 110 May be, e. g., a phosphor platelet that is indexed matched with the optical concentrator 108.
在继承传统训诂学的同时,又将它与现代阐释学相融合,从而推进了传统训诂学的现代转换。
By inheriting the traditions of exegetics and combining them with modern heumeneutics, such studies have propelled the modern transformation of the traditional exegetics.
为了提高红外激光雷达测距系统的测量精度和可靠性,设计并实现了基于高速模数转换器和数字信号处理(DSP)技术的DSP鉴相器。
As a result, the lidar distance measurement system we have developed with a DSP phase detector has a precision of 3 millimeters in the measuring range of 2 kilometers.
由传输线上电压及电流沿线分布之频域相量,可转换为传输线上各频率成份弦波电压及电流沿线之时域传播。
The time harmonic voltage and current wave propagation along a transmission line can readily be transferred from frequency domain voltage and current phasor distribution along the line.
由传输线上电压及电流沿线分布之频域相量,可转换为传输线上各频率成份弦波电压及电流沿线之时域传播。
The time harmonic voltage and current wave propagation along a transmission line can readily be transferred from frequency domain voltage and current phasor distribution along the line.
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