短語詞組短語control -points 控制點Control l points 控制點control switching points 控制切換點control net points 控制網(wǎng)點quality control key points 質(zhì)量控制重點control pivotal points 控制關(guān)鍵點control key points 控制要點quality control pivotal points 質(zhì)量控制關(guān)鍵點pre -control danger points 危險點預(yù)控 返回 control points