查询词典 optional selection

Only some types of nodes are optional, and also they can be used as parts of the templates.

只有某些类型的节点是可选的，也可作为部分的模板。

The value parameter is optional; if it is eliminated, the variable is set to a null value.

两边的空格是为了更可读，实际上，它们不是必需的。

You may add also the optional single-valued attributes and set them to NULL or something if not present .

你也可以增加可选性的单值属性并把他们设为NULL或其他什么东西。

This handle is optional and can be NULL.

这种处理是可选的，可以为NULL。

This pointer is optional and can be NULL.

该指针是可选的，可以为NULL。

Sends and logs a complete error reply to the client. The numeric code specifies the HTTP error code, with message as optional, more specific text.

为客户端发送一个完整的错误回应并记录它。code 指定了 HTTP 错误代码，可选的 message 提供了更详细的信息。

Data for 500 epochs. The 6 to 8 parameters are optional and you may omit them.

数据500时代。在6至8个参数是可选的，你可以忽略它们。

Products are widely used in university library, public libraries, Xinhua Bookstore, audio-visual products shops, drug stores and other places,it is a good helper for optional Open-shelf commodities and modern management library.

产品被广泛用于高校图书馆、公共图书馆、新华书店、音像制品店、药品超市等场所，是实行商品开架自选，图书馆现代化管理的好帮手。

Note 1: The panel labels and operation manuals of the optional products are in English.

注意1：选购件的面板标示文字和使用说明书为英文。

Adopting peak detection, AGC based on receiving duty cycle and multi-phase synchronization, the method can be an optional scheme for lowering sampling rate and system realization cost.engineering methods of IR-UWB wireless systems which focus on the RF front-end of the transceiver are studied by theoretical analysis and experimental verification.

文中还给出了综合这些方法时在室内多径信号下接收性能的仿真结果，仿真表明这种方法在室内环境下可以可靠工作在数兆到数十兆的传输速率上。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。