sealing

• 密封、封口的过程；官方加封或封条；涂保护层；猎捕海豹。

The act or process of closing something tightly or stamping with an official mark; the activity of hunting seals; or the application of a protective coating to a surface.

1. The act of closing or fastening securely, often with an official stamp.B2formal

   The action of making a container, document, or entrance airtight, watertight, or tamper-proof by applying a substance (wax, lead, adhesive tape) or a mechanical device; also, affixing an official mark to authenticate or confirm.

   密封；加封；盖章确认

   • The sealing of the envelope with wax ensured its confidentiality.
   • After the sealing of the tomb, no one was allowed to enter.
   • The notary public performed the official sealing of the contract.
   • Proper sealing of food jars prevents spoilage.
   • The police oversaw the sealing of the evidence bags.

   同义词authenticationclosingclosurecorkingfasteningstopping

2. The practice of hunting seals, especially for their fur or blubber.C1formal

   The commercial or subsistence activity of capturing and killing seals, particularly in maritime regions, for their pelts, oil, and meat; often subject to international regulation and controversy.

   海豹捕猎

   • Sealing has been part of the Inuit culture for thousands of years.
   • The government imposed a ban on commercial sealing in the coastal waters.
   • Activists protested against the annual seal hunt, calling for an end to cruel sealing practices.
   • The sealing industry declined after the EU ban on imported seal products.
   • Annual sealing quotas are set to maintain a sustainable population.

3. The application of a protective coating to a surface to prevent moisture, air, or dirt ingress.B2formaltechnical

   The process of treating wood, stone, concrete, or other materials with a sealant (paint, varnish, resin) that fills pores and creates a barrier against environmental damage, often used in construction, art, and DIY.

   密封处理

   • Sealing the deck with waterproof coating extends its life.
   • The contractor recommended sealing the grout lines to prevent staining.
   • Before painting, thorough sealing of the plaster is necessary.
   • The restoration team focused on the sealing of the ancient mural to preserve it.
   • Proper sealing of the driveway prevents cracks from freezing water.

   同义词coatingimpregnationprimingwaterproofing

• 动词，表示密封、封闭某物使其不漏或不被打开，也指加盖印章或正式批准使其具有约束力或最终确定。

A verb used to indicate the act of closing or fastening something securely, or making something official or final.

1. Close securelyB1formal

   To close or fasten something tightly so that air, water, or other substances cannot pass through.

   密封

   • She sealed the envelope before mailing it.
   • The plumber sealed the pipe to prevent leaks.
   • Make sure to seal the container tightly after use.

   同义词caulkclosecorkfastenplugsecureshutstop

   反义词open

2. Make final or officialB2formal

   To confirm or finalize an agreement, decision, or deal.

   敲定

   • They sealed the contract with a handshake.
   • The victory sealed their place in the finals.
   • The treaty was sealed by the signatures of both leaders.

   同义词cementclinchclosecompleteconcludeconfirmratifysettlevalidate

   反义词breakcancelinvalidaterescindvoid

3. Prevent escape or entryB2formal

   To block or close off an area to prevent people or things from entering or leaving.

   封锁

   • The police sealed off the crime scene.
   • The border was sealed during the crisis.
   • They sealed the room to contain the gas leak.

   同义词barblockcloselockobstructseal offsecureshutstop

   反义词openunseal

短语动词变体seal inseal off