The document was authenticated by a seal.文件有印鉴为凭....note paper bearing the Presidential seal...盖有总统印章的便笺Improved injector nozzles seal off better to keep the process leak - free and the molding operation dry.改进了的注射喷头密封更好...

n.海豹( seal的名词复数 )，批准，（火漆）封印，印章v.密封( seal的第三人称单数 )，决定，确定，封上（信封）...

保证，证明...

Soldiers there are going to seal the airport off.那里的士兵将封锁机场。The Redskins punted. Dallas then marched 79 yards to seal the victory.红人队选择了弃踢，达拉斯队随即跑出79码从而锁定胜局。Write your letter and seal it in a blank envelope.信写好后把它装进空白信封里...

n.密封，印章，海豹，封条v.密封，盖章，决定，封上（信封）...

atmoseal的音标：atmoseal的英式发音音标为：[ætməʊ'zi:l]atmoseal的美式发音音标为：[ætmoʊ'zil]...

seal的第三人称单数（三单）为：seals...

富姆泡沫止水剂...

adj.垂体的...

helixseal的音标：helixseal的英式发音音标为：[hi:lɪk'si:l]helixseal的美式发音音标为：[hilɪk'sil]...

koroseal的音标：koroseal的英式发音音标为：['kɔ:rəsi:l]koroseal的美式发音音标为：['kɔrəsil]...

seal的现在完成时为：sealed...

The paper was used for sealing up holes in walls and roofs.这些纸用来封住墙壁和屋顶的洞。McLaren are close to sealing a deal with Renault.麦克拉伦即将与雷诺达成一笔交易。I covered the scroll in sealing wax, and affixed a red ribbon.我用封蜡将卷轴封好，并系上一根红丝带。...

sealing的音标：sealing的英式发音音标为：['si:lɪŋ]sealing的美式发音音标为：['silɪŋ]...

The city should seal off those tunnels.这个城市应该封闭那些隧道.The enemy made a desperate attempt to seal off the gap through which we had burst.敌人拼命想堵住我们已经冲开的那个突破口.Improved injector nozzles seal off better to keep the process leak...

密封剂...

aquaseal的音标：aquaseal的英式发音音标为：[ækweɪ'si:l]aquaseal的美式发音音标为：[ækweɪ'sil]...

seal off的音标：seal off的英式发音音标为：[si:l ɔf]seal off的美式发音音标为：[sil ɔf]...

seal up的音标：seal up的英式发音音标为：[si:l ʌp]seal up的美式发音音标为：[sil ʌp]...

The best wines are entitled to a numbered seal of quality.上等葡萄酒可以盖上带编号的优质产品印章。Ministers have put their seal of approval on the proposal.部长们已经批准了该提案。The letter bears the seal of the king.这封信有国王的封印....

sealed的音标：sealed的英式发音音标为：[si:ld]sealed的美式发音音标为：[sild]...

n.气封（法）...

A glass or quartz tube has tungsten electrodes sealed in each end.两根钨丝电极是封在玻璃管或石英管的两端.She sealed the letter.她把信封上了。The milk was sterilized and sealed in bottles.牛奶经过灭菌处理后被封装在瓶子里。She merely filled the containers, sealed t...

seal的音标：seal的英式发音音标为：[si:l]seal的美式发音音标为：[sil]...

seal的复数形式为：seals...

aeroseal的音标：aeroseal的英式发音音标为：['eərəsi:l]aeroseal的美式发音音标为：['eərəsil]...

The areas are sealed off and ringed by troops.这些地区被军队封锁包围了。Helicopters with searchlights swept the park which was sealed off.直升飞机的探照灯来回扫射这个被封锁的公园。Police and troops sealed off the area after the attack.袭击发生后警察和士兵将该区域封锁。...

seal的现在进行时为：sealing...

n.空气密封，气密垫...

Seal up one end of a glass tube about 34 inches long.把长约34英寸的玻璃管的一端封闭起来.We seal up the windows when winter comes.冬天来临时,我们密封窗户.Seal ( up ) the window to prevent draughts.把窗户封起来以防风....