迁移活动是动物在有冲突的驱力下从事的活动。
Displacement activities are activities that animals engage in when they have conflicting drives.
即使我们对自己甚为了解-我们的天分和弱点，我们的雄心壮志，我们的动机和内驱力-但是仍然有大部分处在意识的阴影下。
Even when we know quite a lot about ourselves-our gifts and weaknesses, our ambitions and aspirations, our motives and our drives-large parts of ourselves remain in the shadow of consciousness.
用这两种聚合物溶液在不同的浓度和注入速度条件下进行了驱油实验。
The oil displacement experiments with two types of polymers were carried out under the conditions of various concentrations and injecting speeds.
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