初中电学实验盒供初中物理电学学生分组实验使用，可定量研究电路的性质、特点。
J2449 Electricity Experiment Box
For students in group in junior middle school to carry out experiment on the char acteristics of rated circuit.
J2449 Electricity Experiment Box
For students in group in junior middle school to carry out experiment on the char acteristics of rated circuit.
鄂公网安备 42058202000086号