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| 41. | Guitar's experiments did not stimulate any practical study of the electrostatic-precipitation principle. |
| 吉他的试验均未能激起任何关于电收尘原理的实用性研究。 |
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| 42. | An atom contains small particles carrying two kinds of electricity. |
| 原子含有带有两种电的微粒。 |
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| 43. | Can I run my electric sewing-machine off the light circuit? |
| 我能在电灯电路上接电使用电动缝纫机吗? |
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| 44. | An electrical impulse is sent to the exterior cells. |
| 电脉冲被送到表层细胞。 |
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| 45. | All applicants must be well grounded in computer science. |
| 申请人都须有良好的电脑科学根底。 |
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| 46. | Electrical contact is maintained between the wiper and resistance element. |
| 滑臂与电阻器之间形成一个电接触点。 |
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| 47. | Candles are a stopgap when the electricity fails. |
| 没有电的时候蜡烛可作代用品。 |
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| 48. | Basically, the idea of the electric fluid is very simple. |
| 电流质的观念，本质上是很简单的。 |
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| 49. | Electrical networks can be used to obtain tilings of rectangles of prescribed shapes. |
| 电网络可以用来获得将矩形划分成具有指定形状的矩形的划分法。 |
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| 50. | An interconnected array of many such cells will deliver useful amounts of electricity. |
| 若把许许多多这样的电池连成阵列，就能提供可资利用的电能量。 |
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