一个正极性的直流电压加于该电极上。
A positive polarity dc voltage is applied to the electrodes.
认为无论脉宽大小均应采用正极性加工。
Positive polarity machining should be used whether the pulse width is big or small.
用绝对值电路输出正极性瞬时流量信号。
The positive instantaneous flow signal were transmited by absolute value circuit.
并简述了直流正极性焊接铝合金所存在的问题和应用前景。
The existing problems and application prospects of Aluminium welding with straight polarity direct current method are sketched out in this paper.
本文讨论了影响金属氢化物镍电池中发泡镍正极性能的一些因素。
Some factors that influenced the performances of the paste-type nickel cathodes in Ni-MH batteries were discussed.
单极晶体管根据第一端子或者第二端子电连接于单极晶体管而具有负极性或者正极性。
The unipolar transistor has a negative polarity or a positive polarity in accordance with the first terminal or the second terminal electrically connected to the unipolar transistor.
对平行极化、方向指向阳极的样品，只要极化电场强度不是很大，宜选用正极性极化脉冲；
The positive polarity pulse will make better result for the samples than use negative polarity pulse.
正极性导线电晕声音和无线电干扰变化都不大；负极性导线电晕声音和无线电干扰都增大。
The corona voice strengths and levels of radio interference produced by positive polarity wire have little changes, and those produced by negative polarity wire increase with temperature.
对使用石墨电极进行电火花加工钛合金tc4进行了研究，认为无论脉宽大小均应采用正极性加工。
In this paper, research is done on alloy TC4 machined by EDM using graphite electrode. Positive polarity machining should be used whether the pulse width is big or small.
古地磁测量表明，中国新近系保德阶界线层型，山西保德冀家沟剖面记录了12个正极性段与11个负极性段。
Paleomagnetic measurements demonstrate that the Jijiagou section which is the stratotype one of Baode Stage of the Neogene in China records 12 normal and 11 reversed polarity zones.
当负极性比率等于零即直流且焊丝为正极性的MIG焊时，其焊缝熔深最大，焊丝熔化系数最小，熔敷速度最小；
When electrode negative ratio is zero, which is using MIG welding with DC ami welding wire being positive polarity, weld penetration is maximum , wire melting speed and deposition rate are minimum;
结果显示，ETFE薄膜驻极体具有优良的电荷储存稳定性，负极性ETFE的电荷稳定性明显优于正极性样品。
It is found that the charge stability of ETFE electret is very good, and the stability of negatively charged ETFE is much better than that of positively charged ETFE.
更多时候还需要计算机显卡产生一个正极性触发的同步信号，它会通知显示终端所显示的图像行频已经改变到一个新的格式了。
Most will recall that COMPUTER graphic CARDS sometimes OUTPUT positive-going sync. Positive-going sync signal the DISPLAY that the graphics LINE rate has changed to a new format.
直流电压下X射线对气隙、油隙放电的激发过程存在明显的“滞后”现象，即：正极性电压下X射线照射首先抑制放电的发生；
Under DC voltage the restraint and time lag phenomena of partial discharge (PD) in cavities or oil gap by X ray irradiation were investigated.
放电间隙较大的静止状态下，直流电压正极性和交流电压下气固混合两相体的击穿电压都大于相同条件下单一空气的，而直流电压负极性时则相反。
In the in- active state, the breakdown voltage were higher than the single air in the same conditions under AC and positive DC voltage, but it was opposite under negative DC voltage.
内置智能电路，能自动变换充电器的输出极性以适应电池的正极和负极。
With the intelligent circuitry inside, it can automatically transform the charger output polarity to suit for the battery anode and cathode.
两个氢原子构成了一个极性氢分子，一个略带正极，一个略带负极。
The two hydrogen atoms form a polar molecule, that is, one with a slightly positive end and one with a slightly negative end.
两个氢原子构成了一个极性氢分子，一个略带正极，一个略带负极。
The two hydrogen atoms form a polar molecule, that is, one with a slightly positive end and one with a slightly negative end.
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