May I take a message?

早上看公視大家說英語 學到這句

May I take a message?

翻做　＂你要留言嗎？＂

是不是有點意思呢？

電腦當機的英文

電腦當機的英文不是down gi !
電腦當機 == Computer crash

shutdown computer == 關機
power on : 打開電源
power off : 關掉電源

電阻 電容 電感: -ance

//===
resistance, conductance: conductance = 1/resistance for "pure resistor"(passive load).
capacitance, inductance
capacitor, inductor
capacitive, inductive

//===
impedance = resistance + j*reactance
Z= R + jX
阻抗= 電阻 + 電抗

admittance= conductance + j*susceptance
Y= G + jB
導納= 電導 + 電納

"The phase of the complex impedance is the phase shift by which the current is ahead of the voltage."



[ref]
http://en.wikipedia.org/wiki/Electrical_impedance
http://en.wikipedia.org/wiki/Electrical_conductance
http://en.wikipedia.org/wiki/Capacitance
http://en.wikipedia.org/wiki/Inductance
http://zh.wikipedia.org/wiki/%E7%94%B5%E6%8A%97
http://en.wikipedia.org/wiki/Capacitive_reactance