1.~ sth (up/down)封上（信封）to close an envelope, etc. by sticking the edges of the opening together
Make sure you've signed the cheque before sealing the envelope.一定要在支票上签了名再封信封。
a sealed bid(= one that is kept in a sealed envelope and therefore remains secret until all other bids have been received)密封（投）标
2.[oftpass]~ sth (up) (with sth)密封（容器）to close a container tightly or fill a crack, etc., especially so that air, liquid, etc. cannot get in or out
The organs are kept in sealed plastic bags.这些器官保存在密封塑料袋里。
3.[oftpass]~ sth (with sth)封盖…的表面to cover the surface of sth with a substance in order to protect it
The floors had been stripped and sealed with varnish.地板上东西挪空，涂上了清漆。
4.~ sth确定；明确定下来；使成定局to make sth definite, so that it cannot be changed or argued about
to seal a contract订立合同
They drank a glass of wine to seal their new friendship.他们干了一杯，交成朋友。
The discovery of new evidence sealed his fate(= nothing could prevent what was going to happen to him) .新发现的证据决定了他的命运。
5.~ sth关闭；封闭；封锁to prevent people from passing through a place
Troops have sealed the borders between the countries.军队已关闭了两国边界。
1.[c]印章；图章；玺；印记an official design or mark, stamped on a document to show that it is genuine and carries the authority of a particular person or organization
The letter bore the president's seal.信上盖有总统的印章。
2.[sing]表示确认的事物；保证；信物a thing that makes sth definite
The project has been given the government's seal of approval(= official approval) .项目已由政府正式批准。
I looked upon the gift as a seal on our friendship.我把你的礼物看作我们之间友谊的见证。
3.[c]密封垫（或带等）a substance, strip of material, etc. used to fill a crack so that air, liquid, etc. cannot get in or out
a jar with a rubber seal in the lid盖子上有密封垫的广口瓶
Only drink bottled water and check the seal isn't broken.只喝瓶装水，并且要看封口开了没有。
4.[c]封蜡；封铅；封条；火漆a piece of wax (= a soft substance produced by bees ), soft metal or paper that is placed across the opening of sth such as a letter or box and which has to be broken before the letter or box can be opened
He broke the wax seal and unrolled the paper.他揭去封蜡，把纸卷展开。
5.[c]封蜡模（印）；封铅模（印）a piece of metal, a ring, etc. with a design on it, used for stamping a wax or metal seal
6.[c]海豹a sea animal that eats fish and lives around coasts. There are many types of seal , some of which are hunted for their fur.
a colony of seals一群海豹
grey seals basking on the rocks在岩石上晒太阳的灰海豹
Her election to the premiership set the seal on a remarkable political career.当选总理使她的政治生涯灿烂辉煌。
Her election to the premiership set the seal on a remarkable political career.当选总理使她的政治生涯灿烂辉煌。
The technology is to open a discarded shock absorber for repair and finally seal the shock absorber as the shock absorber used to be.
该技术是将废旧减震器打开进行修复，最后封口还原，封口方式分为帽封和平封。
Soon everyone was trying to get the timing right to get good pictures of the seal rather than the penguins.
很快，大家都想着要怎么抓准时机来为这只海象拍出好的照片，而不再关注帝企鹅了。
The component may further include at least one of a seal and at least one fastener joining the inner metal piece and outer metal piece.
所述部件还可包括连接所述内金属件与外金属件的密封件与至少一个紧固件中的至少一个。
They carry the air of that time and place as if the Williamstown of my childhood had been lying under an unbroken seal for 50 years.
那上面留有当时当地空气的味道，好像我童年时的威廉斯敦被封存了50年，未曾遭到任何破坏。
There was no stopping Pirlo as he then set up the second goal of the evening for team-mate Vincenzo Iaquinta to seal the 2-0 Italy victory.
这还没有让皮尔洛停止下来，因为他随后又为队友文森佐·亚昆塔助攻了昨天晚上的第二个进球，从而帮助意大利2-0取得了胜利。
The use effect of the combined seal is completely identical with that of the integral seal.
这种组合印章使用效果与整体式印章的使用效果完全相同。
A motor shaft gap used for a sealing plate for a seal air channel is left between the belt pulley and the end cover of the motor shell.
在皮带轮同电机机壳端盖之间保留供密封风道用的密封板穿过的电机轴空隙位。
An example of their use is to seal the surface between a machined, cold headed or forged shell and a mating machined surface.
其中的一个用途是密封经过机械加工和冷处理或锻造壳和机械加工的吻合面之间的表面。
clearance between the hatch and the fuselage to see that the seal is satisfactory.
检查应急门与机身的缝隙，判断封严是否满足要求。
seal with a low gloss level 6 the surface look like an oiled surface.
经典的6级光泽度的耐磨处理让表面更逼真。
When Looney heard the news of his friend's death, he was in Navy SEAL training and unable to leave.
当鲁尼中尉获悉好朋友噩耗的时候，他正在海军接受海豹突击队的训练，因此无法离岗。
I proclaim righteousness in the great assembly; I do not seal my lips, as you know, O Lord .
我在大会中宣传公义的佳音。我必不止住我的嘴唇。耶和华阿，这是你所知道的。
It seemed to set the seal on his new relationship with the British public: one of unqualified affection.
这看似是要确定他与英国公众的新关系——这是一种有些不融洽的感情。
Since the clearance is so small, the pressure drop across the seal faces, as the few drops flow out, is equal to the pump pressure.
由于间隙很小，随极少油滴漏出，在密封面上的压降等于泵的压力。
the dual-seal toilet stool is hard to be blocked and the phenomena of rising back of bad air and back flow of sewage, etc. , do not happen.
双重密封坐便器不易堵塞，且不发生污气返冒、污水倒灌等现象。
Take caution; some treasure chests have been used to seal away evil creatures, so be on your guard when you unlock your chests!
注意，某些宝箱已用于密封邪恶的生物，所以你们要谨守，当你打开你的胸膛！
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。
The scars that mark Nigerian born singer Seal have long been rumored to be the result of a tribal scarification rite. This is not the case.
尼日利亚出生的歌手席尔脸上的疤痕，一直有传言说是部落仪式的结果，不过情况并非如此。
Seal said the study's most dramatic finding was the sheer number of returning veterans with mental health, personal or family problems.
希尔表示，研究最大的发现就是归来老兵患有心理健康、个人或是家庭问题的绝对数量。
'I've got an old silver spoon, and an old seal too at home, 'said the man, wondering. 'So where do wed "Urbervilles live now, Parson? '"
“我家里倒是有一把银匙和一枚旧印。”这人思忖道，“那么你说，我们德伯家族的人现在住在哪儿呢？”
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