one-to-many和many-to-one的双向关联也是类似的， 当你从多端（子实体）定位到一端（父实体）。
You can make similar arguments for bidirectional one-to-many and many-to-one when you navigate from the one side (the children entities) to the many side (the parent entity).
该特性定义了哪一边是主实体(驱动器)，哪个实体是子实体，并增强了数据访问计划。
This feature identifies which side is the master entity (driver) and which entity is the child and enhances the data access plan.
本研究表明，同时采集地下外生菌根和地上子实体，并结合菌根和子实体的分子序列分析和菌根形态特征观察，是研究外生菌根真菌群落的有效手段。
The practice in this work demonstrated that integrating ECM morphotyping and sporocarps surveys with DNA analysis of ECMF is an effective approach for documenting the ECMF community.
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