| 单词 | 密封 |
| 释义 | 〔tight〕Tight is used as an adverb following verbs that denote a process of closure or constriction, assqueeze, shut, close, tie, and hold. In this useit is subtly distinct from the adverbtightly. Tight denotes the state resulting from the process,whereastightly denotes the manner of its application. As such,tight is more appropriate when the focus is on a state that endures for some time after the activity has ended. The sentenceShe closed up the house tight suggests preparation for an impending blizzard. By the same token, it is more natural to sayThe windows were frozen tight than The windows were frozen tightly, since in this case the tightness of the seal is not likely to be the result of the manner in which the windows were frozen.With a few verbstight is used idiomatically as an intensive and is the only possible form: sleep tight; sit tight. Tight can be used only following the verb:The house was tightly (not tight ) shut. Tight 作副词用在表示关闭或压迫过程的动词后， 如squeeze，shut，close，tie 和 hold 。 在这种用法中，它与副词tightly有细微的差别。 Tight 表示过程导致的状态，而tightly 表示使用这些动作的方式。 因此，当焦点放在动作结束后仍然能持续一段时间的状态时，用tight 更为恰当。 句子她把房子的门窗紧紧地关起来 中表示准备迎接即将来到的暴风雪。 同样，我们说The windows were frozen tight 比 The windows were frozen tightly 更为自然， 因为这里的密封不大可能是窗子被冻上的结果。tight 还与几个动词结合惯用为加强语气的成分，且是唯一可能的形式： sleep tight； sit tight。 Tight 只能用于动词后：房子紧紧地 （而非 tight ) 关闭着 。 〔lute〕A substance, such as dried clay or cement, used to pack and seal pipe joints and other connections or coat a porous surface in order to make it tight. Also called luting 封泥，水泥封涂：一种物质，如晒干的粘土或水泥，用于绑裹和密封管道的连接处和其它连接点或覆盖以有孔的表面以使之牢固 也作 luting〔cap〕A crown for covering or sealing a tooth.齿冠：遮盖或密封牙齿的冠状物〔tube〕A small, flexible cylindrical container sealed at one end and having a screw cap at the other, for pigments, toothpaste, or other pastelike substances.小软管：可弯曲的圆柱形小容器，一头密封，另一头带螺旋盖，用于装入颜料、牙膏等膏状物质〔chest〕A sealed receptacle for liquid, gas, or steam.密封室：贮藏液体、气体或蒸气的密封容器〔hammer〕To put together, fasten, or seal, particularly with nails, by hammering.锤合，锤紧：用锤子来加固、固定或密封，尤指通过钉子〔pouch〕A sealed plastic or foil container used in packaging frozen or dehydrated food.塑胶封袋：用来装冰冻或蒸干食物的密封的塑料或箔制容器〔firkin〕A small wooden barrel or covered vessel.小木桶；密封的容器〔level〕An instrument for ascertaining whether a surface is horizontal, vertical, or at a 45° angle, consisting essentially of an encased, liquid-filled tube containing an air bubble that moves to a center window when the instrument is set on an even plane. Also called spirit level 水准仪：用来确定一个层面是水平的、垂直的或是呈45度角的仪器，主要由一个密封的、充满液体的玻璃管构成，管内有一个气泡，当仪器放在一个水平面上时，气泡移至中间的观测口 也作 spirit level〔over〕The river froze over. Engineers sealed the tunnel entrance over.这条河全结冰了。工程师把这隧道的入口密封住了〔exclude〕a jar sealed to exclude outside air; an immigration policy that excludes undesirables.为防止外部空气进入而密封好的坛子；阻止不受欢迎的人进入的移民政策〔lute〕To coat, pack, or seal with lute.用封泥盖、包或密封〔tight〕Of such close construction as to be impermeable:密封的，不漏的：结构紧密以至不透水的：〔resign〕signāre [to seal] from signum [mark, seal] * see sek w- 1signāre [密封] 源自 signum [记号，封记] * 参见 sek w- 1〔terrarium〕A small enclosure or closed container in which selected living plants and sometimes small land animals, such as turtles and lizards, are kept and observed.动植物培养箱：培养和观察活的植物、有时包括陆上小动物如乌龟或蜥蜴的围篱或密封的小箱子〔sealant〕A plastic resin used in dentistry to coat the chewing surfaces of the back teeth to prevent the growth of cavity-causing bacteria.密封填充物：一种塑料合成脂，修牙时用作后牙咀嚼面的加封层，来抑制导致虫牙细菌的生长〔sealant〕A substance, such as sealing wax, used to seal a surface to prevent passage of a liquid or gas.密封剂：一种用来密封表面以防止液体或气体泄露的物质，如封蜡〔ampoule〕A small glass vial that is sealed after filling and used chiefly as a container for a hypodermic injection solution.安瓿：小的玻璃容器，装满后密封，主要用于贮放皮下注射液〔insulation〕soundproof cork insulation; a layer of trapped air that serves as insulation.隔音的软木材料；用于绝缘的密封空气层〔paperknife〕A thin, dull knife used for opening sealed envelopes, slitting uncut pages of books, and creasing paper.切纸刀：一种用于开启密封的封信、撕开没裁好的书页和在纸张上压印的薄而钝的刀〔seal〕To close hermetically.密封：紧密地封闭〔oven〕A chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for firing, baking, hardening, or drying objects, as in a kiln.烤炉，烤箱：如暖炉里用作加热、烤焙或烘烤食物的室或密封小间；或如火炉里用于点燃、烤焙、硬化、干燥物体的室或密封小间〔coarctate〕artāre [to compress] from artus [tight, confined] * see ar- artāre [压缩] 源自 artus [密封的，有限的] * 参见 ar- 〔airtight〕Abbr. at.Impermeable by air.缩写 at.不透气的，密封的〔fumatorium〕An airtight fumigation chamber in which chemical vapors are used to destroy insects and fungi on plants. Also called fumatory 密封熏蒸室：一种用于杀死植物上的害虫和真菌的充溢化学气体的密封烟熏室 也作 fumatory〔sealer〕One that seals, as an undercoat of paint or varnish used to size a surface.（油漆）封底层：一种密封物质，比如用来给平面上胶的油漆或清漆的底层〔cap〕To cover, protect, or seal with a cap.加帽于：用帽或塞来遮盖、保护或密封 |
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