assimilation type
1.In order to solve need badly threering type gear reducer(problems of high vibration, high temperature and short spin arm bearing life in operation, by means of power separation flow, elastic ring equilibrating load, tardy down and assimilation vibration of synchronous belt transmission, and mechanism balance principle, the author designs a new type threering type gear reducer with arc tooth synchronous belt transmission, the gear reducer is fully balancing, equilibrating load and reducing vibration and phase difference 180(of mass eccentricity .
2.The short shoot leaves had higher assimilating efficiency with the 5th leaf(from top end to basic) of the Starkrimson new and the leaves on new shoot having the maximal net photosynthetic assimilation rate(Pn=15.39mg CO_2·dm~(-2)·h~(-1)). This is one of the physiologicl bases for the early bearing and high yielding spur type apple.
3.One hypothesis advanced to explain the first type of sensing mechanis involves differential carbon assimilation patterns of mesophyll cells on either side of major veins due to microtopographical shading effects.

