《英文msh词典》Sources,Error [入口词] Sources,Error [主题词] Research Design [英文释义] A plan for collecting and utilizing data so that desired information can be obtained with sufficient precision or so that an hypothesis can be tested properly. extrinsic sources of error: 外在的错误来源intrinsic sources of error: 错误的内源sources of angle error: 角误差源sources of range error: 距离误差源sources: 世界通讯; 水源; 苏尔斯; 消息人士; 消息提供者/来源下载手机词典可随时随地查词查翻译