珠心表皮细胞平周分裂产生多层珠心周缘细胞,为厚珠心.The nucellar epidermal cell cuts off several layer nucellar parietal cells.'周缘'.''的关于 、 位于或组成外部边界或周缘的.Related to, located in, or constituting an outer boundary or periphery.&...
The paper introduces the formula of bonderizing agent, the best technology and application field.本文介绍了耐磨磷化剂的配方, 最佳工艺条件及其应用领域....new laser technology...新的激光技术Both processing technology and quality requirement of salt chit...