1
the capping of [sth]
此义表示封堵钻孔或油井的过程，常用于石油工业。
The capping of the damaged oil well took several weeks.
封堵受损油井花了几周时间。
脱帽致敬
cappings — plural of capping
先理解核心含义，再看它在真实句子里的用法。
脱帽致敬
the act of raising or removing one's hat as a sign of respect
The capping of the damaged oil well took several weeks.
封堵受损油井花了几周时间。
脱帽致敬的行为
The act of removing one's hat as a token of respect.
仍含有硫化物矿床的岩体或岩石的淋滤上部
the leached upper part of a body or rock that still contains disseminated sulphide mineral deposit.
封闭油井以密封钻孔的过程
The process of covering a borehole in order to seal an oil well.
在到期日附近出售证券等
The selling of a security etc. close to an expiry date.
The capping of the old oil well will be completed next month.
旧油井的封堵工作将于下个月完成。
Special training is required for the capping of high-pressure wells.
高压油井的封井作业需要专门培训。
Engineers use heavy equipment to ensure the safe capping of the well.
工程师使用重型设备确保安全封堵油井。
此义表示封堵钻孔或油井的过程，常用于石油工业。
The capping of the damaged oil well took several weeks.
封堵受损油井花了几周时间。
地质学中，capping 指矿体经风化淋滤后残存的上部岩层。
Iron capping is a useful marker for mineral exploration.
铁帽是矿产勘探的有用标志。
金融语境中，capping 指临近到期日卖出证券以锁定价差的做法。
The capping of the stock near expiry is a common options strategy.
临近到期日卖出股票是常见的期权策略。
几何学中，capping 指在每个面上加棱锥以形成星形多面体的变换。
The capping of each face produces a star polyhedron.
对每个面进行加顶操作会产生星形多面体。
Not this
The area contains several leached capping.
Use this
The area contains several leached cappings.
capping 是可数名词，复数形式为 cappings。汉语名词没有复数变化，但英语中表示多个岩体时需加 -s，所以 several 后必须用复数 cappings。
Not this
He profited from cap near the expiry date.
Use this
He profited from capping near the expiry date.
介词 from 后接动词时必须使用动名词形式。capping 在这里表示“临近到期日卖出证券”这一行为，不能用动词原形 cap，因此需改为 capping。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
封井（封闭钻孔以密封油井的过程）
Well capping is one of the first steps after a blowout is brought under control.
封井是井喷得到控制后的首要步骤之一。
压价与托价（在期权到期前操纵证券价格的行为）
Capping and pegging near option expiry are regarded as market manipulation.
在期权到期日前后压价与托价被视为市场操纵。
淋滤帽（矿床之上经淋滤形成的岩层）
The leached capping above the ore body is rich in iron oxides.
矿体上方的淋滤帽富含氧化铁。
Use cappings naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
cap既是帽子又是盖子：capping就是给井盖帽、脱帽致意，记住这个动作都围着‘cap’转。
语域：formal 常见场景：文学或礼仪描写、地质勘探与矿物学报告、石油钻井与完井作业、期权或期货交易、几何学多面体变换 名词 capping 通常用于较正式或专业书面语。不同专业领域含义差别较大：如“脱帽致敬”多见于文学或礼仪描写，“封井”多用于石油工程，“临近到期卖出证券”常见于金融交易。日常口语中很少单独使用。
复数形式 cappings 主要用于具体事物义项（如岩层上部、覆盖物）；抽象的行为/过程义通常用单数。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.