The magnet creates a field that changes the polarity of a tiny, tiny portion of the metal particles which coat each platter's surface.
这个磁体创建一个磁场，能改变覆盖在磁盘表面的小金属粒子的极性。
The magnet creates a field which changes the polarity of a tiny, tiny portion of the metal particles which coat each platter's surface.
这个磁体创建一个，能改变覆盖在，磁盘表面小金属粒子的磁极。
This section details how to make surface and volume resistivity measurements with these test fixtures, as well as the Alternating Polarity and Alternating Voltage techniques for measuring resistivity.
本节详细介绍如何使用这些测试夹具来进行表面电阻率和体电阻率的测量，以及测量电阻率时使用的变换极性和变换电压的技术。
When the sun's rotation sweeps this warped surface across the earth, we detect sudden changes in the polarity of the magnetic field.
当太阳的自转使这个波浪形间隔面扫过地球时，我们就会探测到磁场极性的突然反转。
The polarity of impulse voltage and the polarity of insulator surface electric charge can affect the corona initial time of insulator, the change time - interval and the corona current.
外拖冲击电压的极性与绝缘子表面电荷极性是否相同会影响绝缘子的电晕起始时刻、由流注向先导的转变时间间隔和流注电晕电流。
The results show that the agglomeration of the charged smoke particles is affected by surface charge distribution, charge quantity, particle size, charge polarity and so on.
研究结果表明，电场中带电烟尘粒子的凝集受粒子表面电荷分布和电荷量、粒径、粒子所带电荷的极性以及中性电荷粒子的影响。
Based on the measurement of the contact Angle of differently treated ITO, the surface energy and polarity were calculated using the harmonic mean method.
在测量ito接触角的基础上，应用调和平均法计算了不同表面处理ITO阳极的表面能和极性度。
This phenomenon was attributed to the difference in specific surface area of the adsorbents and polarity of their networks.
探讨了树脂结构对于吸附性能的影响，发现吸附性能的差别是由树脂的比表面和骨架极性的差异造成的。
The population of silanol groups on the surface greatly decreases due to being consumed in the reaction with organosilane, resulting in a reduction in surface polarity.
样品的表面硅羟基由于被消耗而明显减少，导致表面极性降低。
The results show that the polarity and reactive activity of the surface of wheat straw fiber are improved by the modification, as well as the mechanical properties of MDF with modified fibers.
结果表明，所采用的改性方法，提高了麦草纤维表面的极性和反应活性，用改性的麦草纤维制得的中密度纤维板，其力学性能有显著提高。
Influential factors were considered including specimen's surface state, ambient atmosphere, polarity, magnitude and method of tip sample applied voltage.
实验考虑了样品的表面状态，周围大气状况，所加电压的极性、大小和加压方式等影响纳米加工的因素。
The experimental results show that within a certain voltage range the polarity of the surface charge will reverse as the DC voltage duration increases.
这与国外研究者认为的绝缘子表面电荷积聚会随着电压作用时间的增加逐渐增加，进而达到饱和的结果有着显著的不同。
The fraction of polarity part of surface free energy is increased by oxidization.
表面自由能的极性分量因氧化处理而增大。
A research on the effects of amplitude, polarity and the stressed duration of the applied voltage on the surface charge accumulation is carried out.
研究了外施直流电压极性、幅值、作用时间和外界气象条件对表面电荷积聚的影响。
The result indicates that the fouling of membrane is mainly formed by gel polarity on surface of the membrane.
结果表明，膜污染主要是由膜表面凝胶层造成的；
The value of surface roughness is influenced by discharge current which involves discharge energy, pulse duration and polarity effect.
在加工过程中，表面粗糙度会受到放电电流的影响，其中包括放电电流能量、电流脉宽及电流极性的影响。
The surface body electrocardiogram(ECG) manifestations of biatrial pacing are that P wave duration shortens, the polarity of P wave changes to negative, PR interval gets shorter correspondingly.
双房同步起搏体表心电图表现为P波时限短、负向或正负双向，PR间期相应缩短。
The surface body electrocardiogram(ECG) manifestations of biatrial pacing are that P wave duration shortens, the polarity of P wave changes to negative, PR interval gets shorter correspondingly.
双房同步起搏体表心电图表现为P波时限短、负向或正负双向，PR间期相应缩短。
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