source bed源层sourcen.来源；发源地；原始资料v.从...获得source strength measurement源强度测定source-follower amplifier源输出放大器source areas of Shule River疏勒河源区sources close to government接近政府人士Source- sink relationship源库关系Source of diffuse pollution扩散污染源source rock characteristics烃源岩特征source language instruction源语言指令source of legislative power立法权源source signature simulation子波模拟