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I△=50mA，T△=0.2s I△=75mA，T△=0.2s I△=100mA，T△=0.2s I△=200mA，T△=0.15s I△=500mA，T△=0.1s
IΔ=50Ma，TΔ=0.2s IΔ=75mA，TΔ=0.2s IΔ=100mA，TΔ=0.2s IΔ=200mA，TΔ=0.15s IΔ=500mA，TΔ=0.1s
who are you what are you whom do you want who is it
IΔ>30mA,TΔ=0 IΔ=30mA,TΔ>0 IΔ>30mA,TΔ>0 IΔ>30mA,TΔ>0
I Δ＞ 30mA，TΔ=0.1s I Δ=30mA，TΔ＞ 0.1s I Δ＞ 30mA，TΔ＞ 0.1s I Δ＞ 30mA，TΔ＞ 0.1s.I Δ?TΔ≤ 30mA?s
I△=50mA，T△＝0.2s I△=75mA，T△＝0.2s I△=100mA，T△＝0.2s I△=200mA，T△＝0.15s I△=500mA，T△＝0.1s
20μA,1mA 10μA ,0.5mA 20μA,2mA 10μA,1mA
IΔ>30mA，TΔ=0.1S IΔ=30mA，TΔ>0.1 IΔ>30mA，TΔ>0.1S IΔ>30mA，TΔ>0.1S，IΔ·TΔ≯30mA·0.1S
I△＞30MA，T△=0.1S I△＞30MA，T△=0.1S I△＞300MA，T△=0.1S I△＞300MA，T△＞0.1S，I△·T△≯30MA·0.1S
Whatever Whenever However Wherever
MA＝PhI2/I1 MA＝Ph MA＝2PhI2/I1 MA＝2Ph
IΔ>30mA，TΔ=0.1S IΔ=30mA，TΔ>0.1 IΔ>30mA，TΔ>0.1S IΔ>30mA，TΔ>0.1S，IΔ²TΔ≯30mA20.1S
I△ >30 mA ， T△ =0.1s I △=30 mA ， T△>0.1s I △>30 mA ， T△>0.1s I△ >30 mA ， T△ >0.1s，I△·T △≤30 mA · s
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