| Subject | Chinese | English |
| interntl.trade. | 业务函件 | official correspondence |
| space | 事件内函数 | event built-in function |
| gen. | 传发函件给 | circularize |
| textile | 传阅的函件 | circular letter |
| commer. | 你方函件 | your letter |
| commer. | 你方五月十二日致我总公司函件已转我公司处理 | Your letter of May 12 addressed to our Head Office has been transmitted to us for attention |
| commer. | 你方五月十日函件收到 | We acknowledge receipt of your correspondence of May 10 |
| commer. | 你方八月二十日函收到，但缺少所提及的附件 | Your letter dated August 20 has come to hand, but the enclosure mentioned is wanting |
| commer. | 你方四月四日函件已收到 | Your letter of April 4 has been received |
| commer. | 你方本月十日函件收到 | We are in receipt of your letter of the 10th, inst |
| interntl.trade. | 保证函件格式 | specimen of the irrevocable letter of guarantee |
| interntl.trade. | 免收航空附加费的航空函件 | unsurcharged airmail correspondence |
| tech. | 免收航空附加费的航空函件 | undercharged airmail correspondence |
| econ. | 免收附加费的航空函件 | the unsurcharged airmail correspondence |
| commer. | 关于你方函件 | refer to your letter |
| commer. | 关于你方函件 | referring to your letter |
| commer. | 关于我方函件 | refer to our letter |
| interntl.trade., fr. | 其他函件 | autres objects |
| busin. | 其他函件 | other items |
| interntl.trade. | 其它函件 | other items |
| econ. | 兹随函寄上50吨船舶用一级铁板订单一份，具体规格见附件 | We send you herewith an order for 50 tons best iron ship plate as per the particulars on the annexed specifications |
| archit. | 函件 | circular |
| archit. | 函件 | cir |
| exhib. | 函件 | correspondence |
| telecom. | 函件 | message |
| telecom. | 函件 | mail |
| telecom. | 函件 | letter |
| agric., stat., IT | 函件 | correspondence (correspondentia) |
| met. | 函件分发器 | mail exploder |
| avia. | 函件契约 | letter contract |
| adv. | 函件应答系统 | mailing answer system |
| tech. | 函件摘录 | extract of a letter |
| interntl.trade. | 函件摘要 | extract of a letter |
| econ. | 函件摘要 | the extract of a letter |
| busin. | 函件查核欠款 | verification of outstandings by correspondence |
| interntl.trade. | 函件验关费 | customs clearing fee on correspondence |
| econ. | 函内附件 | enclosed |
| busin. | 函内附件 | enclosure |
| gen. | 函内附件 | the enclosed |
| space | 计算机函数元件 | function unit |
| tech. | 函数元件 | functional unit |
| comp. | 函数转换部件 | function conversion unit |
| tech. | 初始条件函数发生器 | producer of initial condition function |
| gen. | 半官方函件 | demiofficial |
| avia. | 协议函件 | letter of agreement |
| commer. | 印刷函件 | form letter |
| avia. | 合同函件 | letter of contract |
| avia. | 咨询函件 | advisory circular |
| interntl.trade. | 商业函件 | commercial letter |
| busin. | 商业函件 | business letters |
| busin. | 商业函件结尾的客套语 | complimentary close |
| tech. | 商务函件 | commercial correspondence |
| exhib. | 商品推销函件 | call letter |
| busin. | 国际邮件复函免费优待券 | reply coupons |
| China, law | 委托函件 | letter of entrustment |
| avia. | 定义函件 | letter of definition |
| mining. | 局部条件累积密度函数 | local conditional cumulative density function |
| interntl.trade. | 平常函邮件査单 | application for a missing unregistered postal packet |
| proj.manag. | 往来函件 | transmittal |
| commer. | 感谢贵方五月十二日函及其附件 | We thank you for your letter of May 12 with enclosures |
| busin. | 我方函件 | my letter |
| avia. | 我方函件 | our letter |
| telecom. | 扁平函件分拣机 | flat sorting machine |
| econ. | 打印函件 | form letter |
| interntl.trade. | 推销信函附件 | letter gadget |
| gen. | 提请注意的函件 | reminder |
| hydroel.st. | 无条件保函 | first demand guarantee |
| proj.manag. | 无条件保函 | guarantee on the first demand |
| textile | 无条件保函 | unconditional guarantee |
| hydroel.st. | 无条件保函，见索即付保函 | first demand guarantee |
| tech. | 无条件的银行保函 | unconditional bank guarantee |
| proj.manag. | 无条件银行保函 | unconditional bank guarantee |
| busin. | 无法投递函件 | dead letter |
| commer. | 有大量函件要处理 | have a heavy correspondence to deal with |
| hydroel.st. | 有条件保函 | accessory guarantee |
| logist. | 有条件保函 | conditional letter of guarantee |
| avia. | 服务函件 | service letter (按客户服务文件“维修工程类”管理程序《QP-3038-CS-103》定义，主制造商在不紧急的情况下，以信函的形式发布的针对飞机系统和部件维护的一般或者特定的信息,这些信息包括但不限于以下几类:①告知同一系统内不同标准的部件的互换性和混装性; ②向运营人通报可用的或者即将发布的供应商更改的信息; ③介绍与产品改进、维修、操作相关的信息; ④介绍带有普遍性的问题和政策“如服务通告改装包的价格等”) |
| avia. | 服务信息函件 | service information letter |
| interntl.trade. | 未付资费函件 | unpaid correspondence |
| tech. | 条件内部函数 | condition built-in function |
| AI. | 条件函数 | COND function |
| bridg.constr. | 条件分布函数 | conditional distribution function |
| math. | 条件存活函数 | conditional survivor function |
| tech. | 条件密度函数 | conditional density function |
| tech. | 条件对数似然函数 | conditional log likelihood function |
| math. | 条件幂函数 | conditional power function |
| busin. | 条件效用函数 | conditional utility function |
| tech. | 条件概率函数 | conditional probability function |
| bridg.constr. | 条件概率密度函数 | conditional probability density function |
| bridg.constr. | 条件概率质量函数 | conditional probability mass function |
| tech. | 条件模拟变差函数 | variogram of conditional simulation |
| oil | 条件稳定函数 | conditionally stable function |
| earth.sc. | 条件累积分布函数 | conditional cumulative distribution function |
| interntl.trade. | 来往函件 | correspondence |
| commer. | 正式函件 | formal letter |
| comp., MS | 無參數的建構函式條件約束 | parameterless constructor constraint (A restriction on a generic type parameter, such that types substituted for that type parameter must provide a parameterless or default constructor) |
| textile | 现金函件 | cash letter |
| busin. | 美现金函件邮寄送款单等 | cash letter |
| busin. | 用函件报盘与接受 | offer and acceptance by post |
| busin. | 由…签署的函件 | letter signed |
| tech. | 申述意图函件 | letter of intent |
| el. | 电子函件 | electronic mail |
| telecom. | 电子函件 | mail (E-mail 的简称) |
| IT | 电子函件 | electronic mail (E-mail) |
| econ. | 电子函件 | email |
| el. | 电子函件应用接口 | mail application interface |
| corp.gov. | 电子函件授权 | e-mail authorization |
| math. | 目标函数的约束条件 | bound for objective function |
| tech. | 目标函数的约束条件 | bond for objective function |
| busin. | 目标函数约束条件 | bound for objective function |
| avia. | 空军通信保密函件 | air force communication security letter |
| commer. | 签署的函件 | letter signed |
| commer. | 继我方本月三日函件，我方进一步特此通知贵方我方已向贵方寄送所有要求的样品 | Further to our letter of the 3rd inst., we have pleasure to inform you that we have sent you all the samples requested |
| avia. | 维修服务函件 | maintenance service letter |
| interntl.trade. | 补充函件 | back letter |
| avia. | 表面信息函件 | surface information letter |
| el. | 评价函件 | letter of inquiry |
| interntl.trade. | 询价函件 | letter of inquiry |
| securit. | 询价函件 | letter of enquiry |
| textile | 转包合同函件 | subcontract letter |
| tech. | 边界条件函数发生器 | producer of boundary condition function |
| tech. | 通用函数发生器部件 | universal function generating unit |
| gen. | 通知提示函件 | reminder |
| space | 非函数软件包 | nonfunctional package software |
| tech. | 非函数软件包 | non-functional packages software |
| tech. | 非条件模拟变差函数 | variogram of non-conditional simulation |
| avia. | 项目定义函件 | letter of program definition |
