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This article introduces the work principle of untouched electrode method exploration, wave of transmit signal needed in exploration and circuit that generate transmit signal.

本文介绍了不接触电极法测量的工作原理，测量中所需的发射信号的波形以及产生发射信号的电路。

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Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.

为此参照等效质量原理对声振系统进行了激振试验，并对试验条件和试验方法进行了介绍。

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One of the rules of Elliott Wave Principle is that wave 4 should not trade below the top of wave 1.

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Elliott Wave Principle suggests that when a five wave move finishes, we should expect a recovery back to the prior fourth wave level.

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Ralph Nelson Elliott, the architect of the Elliott Wave Principle, suggested that at least one wave in a five-wave sequence is likely to be an extended wave.

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