从开始孕育时,花芽便具有一层由苞片和鳞片构成的保护层.They have a protective cover of bracts and scales from time of intiation.果扁球形, 直径1.7厘米, 基部托以宿存苞片和萼片.Fruit oblate, 1.7 cm in diameter, base with persistent bracts and sepals.苞片和小苞片紫红色.粉红色或白色, 膜质...
The removal of the chromatic aberration is then of primary importance.这时消除色差具有头等重要性.The resultant defect is known as chromatic aberration.由此而产生的缺陷叫做色差.The absolute values of the coefficients of any chromatic polynomial f...