闭域 閉域 bì yù closed domain / algebraically closed field (math.), e.g. complex number field 複數域|复数域[fu4 shu4 yu4] 子集合 zǐ jí hé subset (math.) 已结束的特派团 closed peacekeeping mission / closed mission 军事禁区 closed military area / closed military zone 非开放名单制 非開放名單制 closed list / closed-list system 差商 chā shāng (math.) difference quotient / (math.) divided difference / (math.) finite difference 一部分 yī bù fèn portion / part of / subset syn 一部分 yī bù fen portion / part of / subset syn 子集 zǐ jí subset 真子集 zhēn zǐ jí proper subset 金丝燕 金絲燕 jīn sī yàn Aerodramus, genus of birds that use echolocation, a subset of the Collocaliini tribe (swiflets), two of whose species – Aerodramus fuciphagus and Aerodramus maximus – build nests harvested to make bird's nest soup 闭图象定理 閉圖象定理 bì tú xiàng dìng lǐ closed graph theorem (math.) 闭集 閉集 bì jí closed set (math.) 次数 次數 cì shù number of times / frequency / order number (in a series) / power (math.) / degree of a polynomial (math.) 参量 參量 cān liàng parameter (math) / quantity used as a parameter / modulus (math.) 偏微分 piān wēi fēn (math.) partial differential / (math.) partial derivative 封闭 封閉 fēng bì to close / to seal off / to close down (an illegal venue) / closed (i.e. isolated from outside input) syn 紧闭 緊閉 jǐn bì to close securely / tightly closed / secure 闭着 閉著 bì zhe closed 闭合 閉合 bì hé to close by coming together (like the lips of a wound, the doors of an elevator, the walls of a channel) / to close by connecting in a loop (like a circuit) / closed-loop syn 开国 開國 kāi guó to found a state / to open a closed country syn 环路 環路 huán lù ring road / closed circuit / loop 闭路电视 閉路電視 bì lù diàn shì closed-circuit television 内定 內定 nèi dìng to select sb for a position without announcing the decision until later / to decide behind closed doors / all cut and dried 私了 sī liǎo to settle privately / to solve behind closed doors / to settle out of court 守口如瓶 shǒu kǒu rú píng lit. to guard one's mouth like a closed bottle (idiom) / tight-lipped / reticent / not breathing a word syn 电子警察 電子警察 diàn zǐ jǐng chá traffic camera / speed camera / closed-circuit TV police surveillance 门闩 門閂 mén shuān horizontal bar to hold a door closed (made of wood or metal) / door bolt syn 公休 gōng xiū to have a public holiday / to have an official holiday / (Tw) (of a business establishment) to be closed regularly on certain days, as determined by a trade association 闷葫芦 悶葫蘆 mèn hú lu lit. closed gourd / fig. enigma / complete mystery / taciturn person syn 吃闭门羹 吃閉門羹 chī bì mén gēng to be refused entrance (idiom) / to find the door closed syn 闷 悶 mèn bored / depressed / melancholy / sealed / airtight / tightly closed syn 合眼摸象 hé yǎn mō xiàng to touch an elephant with closed eyes (idiom) / to proceed blindly 深闭固拒 深閉固拒 shēn bì gù jù deep, closed and refusing (idiom) / obstinate / stubborn and perverse 隔行如隔山 gé háng rú gé shān different trades, worlds apart (idiom) / to sb outside the profession, it is a closed book 闭关政策 閉關政策 bì guān zhèng cè closed-door policy 闭音节 閉音節 bì yīn jié closed syllable 封闭性 封閉性 fēng bì xìng closed / encapsulated 半开半关 半開半關 bàn kāi bàn guān half-open, half closed 合缝 合縫 hé fèng (of doors, windows etc) to fit snugly when closed / to close nicely 密闭式循环再呼吸水肺系统 密閉式循環再呼吸水肺系統 mì bì shì xún huán zài hū xī shuǐ fèi xì tǒng closed-circuit rebreather scuba (diving) 封闭性开局 封閉性開局 fēng bì xìng kāi jú Closed Game / Double Queen Pawn Opening (chess) / same as 雙后前兵開局|双后前兵开局 猜枚 cāi méi drinking game where one has to guess the number of small objects in the other player's closed hand 谢绝参观 謝絕參觀 xiè jué cān guān closed to visitors / no admittance 锁国 鎖國 suǒ guó to close a country / to exclude foreign contact / closed country (Qing China, North Korea etc) 闭区间 閉區間 bì qū jiān closed interval (in calculus) 闭卷考试 閉卷考試 bì juàn kǎo shì closed-book examination 关店歇业 關店歇業 guān diàn xiē yè to close up shop and cease business temporarily / closed for business 双后前兵开局 雙后前兵開局 shuāng hòu qián bīng kāi jú Double Queen Pawn Opening / Closed Game (chess) / same as 封閉性開局|封闭性开局 封闭生态系统 封閉生態繫統 fēng bì shēng tài xì tǒng closed ecological system 闭门会议 閉門會議 bì mén huì yì closed-door meeting 禁渔区 closed area 闭杯试验 bì bēi shì yàn closed-cup test 密闭生态系统 密閉生態系統 mì bì shēng tài xì tǒng closed ecological system 郁闭林被 郁閉林被 yù bì lín bèi closed forest cover 封闭林 封閉林 fēng bì lín closed wood 限制出入区 限制出入區 xiàn zhì chū rù qū restricted area / closed area 闭路字幕 閉路字幕 closed captioned 关闭式监所 關閉式監所 closed penal institution 暖轿 暖轎 nuǎn jiào closed sedan chair 辟室 闢室 pì shì lit. to open a room / fig. to settle in a quiet room / behind closed doors 辟室密谈 闢室密談 pì shì mì tán to discuss behind closed doors 闭目养神 閉目養神 bì mù yǎng shén to relax with one's eyes closed 内测 內測 nèi cè (software development) to do closed beta (or internal beta) testing 暗里 暗裡 àn li privately / secretly / behind closed doors 闭环 閉環 bì huán closed loop 深锁 深鎖 shēn suǒ locked up / closed off / (of one's brow) furrowed / frowning 闭源 閉源 bì yuán (computing) closed-source 闭馆 閉館 bì guǎn (of libraries, museums etc) to be closed syn 一次 yī cì first / first time / once / (math.) linear (of degree one) 空间 空間 kōng jiān space / room / (fig.) scope / leeway / (astronomy) outer space / (physics, math.) space syn 数量 數量 shù liàng amount / quantity (CL:個|个[ge4]) / quantitative / (math.) scalar quantity syn 组合 組合 zǔ hé to assemble / to combine / to compose / combination / association / set / compilation / (math.) combinatorial syn 指数 指數 zhǐ shù (numerical, statistical) index / (math.) exponent / index / exponential (function, growth) 内心 內心 nèi xīn heart / innermost being / (math.) incenter syn 交换 交換 jiāo huàn to exchange / to swap / to switch (telecom) / commutative (math) / to commute syn 元素 yuán sù element (key component of sth) / (chemistry) element / (math.) element (member of a set) syn 联络 聯絡 lián luò to get in touch with / to contact / to stay in contact (with) / liaison / (math.) connection syn 函数 函數 hán shù function (math.) syn 传递 傳遞 chuán dì to transmit / to pass on to sb else / (math.) transitive syn 不变 不變 bù biàn constant / unvarying / (math.) invariant syn 分子 fēn zǐ molecule / (math) numerator of a fraction syn 解析 jiě xī to analyze / to resolve / (math.) analysis / analytic syn 多元 duō yuán poly- / multi- / multielement / multivariant / multivariate (math.) syn 高等 gāo děng high-level / higher (animals, education etc) / advanced (math etc) syn 集合 jí hé to gather / to assemble / (math.) set syn 三次 sān cì third / three times / (math.) degree three, cubic (equation) 排列 pái liè to arrange in order / (math.) permutation syn 二次 èr cì second (i.e. number two) / second time / twice / (math.) quadratic (of degree two) 变量 變量 biàn liàng variable (math.) 配方 pèi fāng prescription / cooking recipe / formulation / completing the square (to solve quadratic equation, math.) syn 详解 詳解 xiáng jiě to explain in detail / detailed answer / full solution (to a math problem) 命题 命題 mìng tí proposition (logic, math.) / to assign an essay topic 区间 區間 qū jiān delimited area / defined section of a train or bus route / numerical range / (math.) interval syn 概率 gài lǜ probability (math.) syn 因子 yīn zǐ factor / (genetic) trait / (math.) factor / divisor syn 猜想 cāi xiǎng to guess / to conjecture / to suppose / (math.) hypothesis syn 分歧 fēn qí divergent / difference (of opinion, position) / disagreement / (math.) bifurcation syn 有理 yǒu lǐ reasonable / justified / right / (math.) rational syn 