查询词典 optional attribute

This paper addresses high speed communication solution between 16 bit microcontroller?based data acquisition system and PC/AT compatible computer. After 16 bit Industry Standard Architecture peripheral interface of PC is analysed, a 16 bit parallel communication card is developed with three kinds of optional modes: poll, interrupt and DMA.

为了解决单片机数据采集系统与PC机之间大数据量交换时的低速问题，剖析了目前广为流行的PC／AT兼容机ISA通道的16位I／O接口原理，并通过细致的电路设计，开发了一种通用性很强的高速16位并行通讯插卡，且使用了3种可选的通讯方式，即查询、中断和DMA。

ESBCalc Pro is an Enhanced Windows Scientific Calculator with Infix Processing, Exponential Notation, Brackets, Scientific Functions, Memory, Optional Paper Trail, Printing, Result History List, Integrated Help and more.

esbcalc Pro是一个增强的Windows计算器科学与infix加工，指数符号，括号内的，科学的功能，记忆体，可选文件线索，印刷，结果历史记录列表，综合的帮助和更多。

ESBCalc Pro is a Enhanced Win32 Scientific Calculator with Infix Processing, Exponential Notation, Brackets, Scientific Functions, Memory, Optional Paper Trail, Printing, Result History List, Integrated Help and more.

esbcalc亲是一个增强的Win32科学计算器与infix加工，指数符号，括号内的，科学的功能，记忆体，可选文件线索，印刷，结果历史记录列表，综合的帮助和更多。

Sample data is provided and there is an optional Getting Started wizard to assist with entering initial live data.

样本数据是提供有一个可选的入门向导，以协助进入初步的实时数据。

They look optional, but I don't know whether to install or not.

他们期待可选的，但是我不知道是否要安装或没有。

All 1/4 valves shall have optional field installable male thread and tubing end connector adapters.

所有DN8阀门应该配置备选现场安装的外螺纹和管状端口连接适配器。

The Nokia N900 has 32 GB of internal storage, which is expandable up to 48 GB via optional microSD cards (up to 16 GB in size).

诺基亚 N900拥有 32 GB的内部存储，这是可扩充至48 GB的通过可选的microSD卡（高达 16 GB的大小）。

Depending on the joggle theory,the paper gives the face equation of annulus worm of turning and milling optional drive ratio,first kind and second kind limited curve.

这里依啮合原理给出了车削变齿距环面蜗杆的齿面方程和磨削的环面蜗杆齿面方程、一类及二类界限曲线。

The optional Sport Package includes sports buckets seats with enhanced side support and are finished in highly distinctive leatherette materials or Boston leather.

择运动包体育水桶席位增强方的支持，并建成极富特色人造革材料波士顿或皮革制品。

Definition: Lexically, a QName consists of an optional namespace prefix and a local name.

定义：从词法上说，一个 QName 由一个可选的命名空间前缀和内部名称组成。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。