sealn.封条;印章n.海豹v.密封;盖印;明确
seal wire铅封丝
sealedoffadj.封离的(烫开的)
sealingonn.焊上
seal test致密性试验
seal mask密封口鼻罩
seal loop水封环
seal fail密封故障
seal lock孔堵,塞
seal bark海豹吼叫
sealinginn.焊接