“nucellus”的概念、定义、翻译、参考文献-科学参考

单词	nucellus
释义	nucellus Biology The tissue that makes up the greater part of the ovule of seed plants. It contains the embryo sac and nutritive tissue. It is enclosed by the integuments except for a small gap, the micropyle. In certain flowering plants it may persist after fertilization and provide nutrients for the embryo.
随便看	product of inertia product of sums expression product proliferation product recovery product rule product set product space product term Productus giganteus Proetida professional body profile likelihood profiling profit profit-and-loss account profit maximization profit motive profit-related pay profit-sharing profit-sharing arrangement profit-taking profit warning pro-foreland basin profundal Proganochelys quenstedii

科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。