centre mark
3.Aluminium electrlysis by means of low molecular ratio electrolyte is an important mark for centre-worked prebake cell at present.
4.For example, outside the afferent nerve fiber in week nerve passes into sensory information centre, the instruction information that efferent nerve fiber issues centre spreads effect implement, convey with the form of nerve impulse, and the biology report that nerve impulse calls behavioral potential one kind namely changes, it is the mark of nerve excitement.
