1. Weston' is the trademark for a standard voltaic cell.

2. A new small-scale interfacial voltaic cell is shown to be satisfactory for potassium permanganate Oxidation-Reduction potentiometric titration in milligram and microgram amounts of the samples.

3. The photoelectric transition property of Silicon photo - voltaic Cell was examined theoreticallyand experimentally.

4. The " electrode" is not equal to the electric pole. Because every electrode of a voltaic cell consists of two contrary poles .

5. This paper introduces that a new energy-saving reactor, without any supply of mechanical energy, can stir automatically with electrochemical voltaic cell.