Variation potential (V. P.) transmission in the xylem of willow plantlet was recorded using outside cell electrode records.

用胞外电极记录了柳茎木质部中的变异电波传递。

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Furthermore the distribution and variation of the electrostatic potential and layer ionospheric current density at the northern hemisphere are calculated by the dynamo theory.

继而从发电机理论得到了电离层电位及层电流密度在北半球的分布和变化。

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The variation of denitrification potential and denitrification rate after addition of external carbon sources through SBR reactor intermittent test was studied.

通过SBR反应器间歇试验，研究了投加外碳源后系统的反硝化潜力和反硝化速率的变化。

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The term should be restricted to that part of the deposit where production planning is taking place and for which any variation in the estimate would not significantly affect potential economic viability.

FORBES: But Every Generation Does Indeed Exhaust Its Mineral Reserves