农业品种技术创新的过程特征是：多环节、关联性、制约性和双向性。
The course characteristic of agricultural variety technological innovation are: Multiple - link, correlation, conditionality and two-way.
这一过程会逐渐形成两种稍有不同的特征：主体自我和客体自我。
The process can usefully be thought of in terms of the gradual emergence of two somewhat separate features: the self as a subject, and the self as an object.
在这个传递和反射的过程中，声音发生了变化，回声的变化使蝙蝠能够感知到目标的特征。
In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.
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