源

• All my decay has taken place upon a child .
  我所有的毛病都源出于我的孩子气。
• Our hopes stem from our previous achievements .
  我们的希望源于我们从前的成就。
• In a radio tube there is a source of electrons .
  在电子管中，有一个电子发射源。
• The brushes are connected to the source of electrical energy .
  电刷和电能源相联接。
• In both cases large power sources are required .
  在两种情况中都需要大功率的射频源。
• Hatred often springs from fear .
  仇恨常常源于恐惧。
• Any such device is called a seat of electromotive force .
  任何这样的装置称为电动势源。
• There are as good fish in the sea as ever came out of it .
  世上富源如鱼虾，日日取用无尽期。
• The most widely used large energy source is the air gun .
  应用最为广泛的大的能量源是空气枪。
• Physically, the resistor is effectively the source of noise .
  从物理上来说，电阻器等效于噪声源。