fixed aim固定目标fixedadj.固定的；不变的；确定的动词fix的过去式和过去分词.fixed inductor coil固定感应线圈fixed-line number固定行号fixed radio station固定无线电台fixed-length data定长数据fixed word-length固定字长Fixed Acoustic Buoy固定音响浮标fixed income earner[经] 固定收入者fixed absorbent bed固定式吸附剂床fixed sample-size固定样本量fixed frequency iff[电] 定频友敌鉴别仪