短语词组短語sinker drill [機]沖鑽;鑿井用鑿巖機;沖鑽sinker weight 增加下沉力物躰重量;沉砣Sinker EDM 電火花成型加工special sinker 特殊沉降片nozzle sinker 受油嘴sinker lead 沉子;沉降片蠟sinker butt 沉降片踵趾sinker head 沉片帽Sinker plating 交換添紗 返回 sinker