To train a rat, the experimenter placed it in an operant conditioning chamber: a small plastic box with a lever at one end.
为了训练小鼠，实验人员把它放在一个操作性条件反射室：一个一端置有操作杆的塑料箱。
The system is composed of PC, conditioning and controlling circuit, power supply and testing chamber installed sensors array.
该系统由PC 机、调理控制电路、电源和装有传感器阵列的测试腔构成。
The system is composed of PC, conditioning and controlling circuit, power supply and testing chamber installed sensors array.
该系统由PC 机、调理控制电路、电源和装有传感器阵列的测试腔构成。
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