查询词典 optional attribute

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。

Optional Make a selection in the images you want to match.

可选在需要匹配色彩的图象中做一个选区，如果你是想在图象的特定区域匹配色彩。

With optional file selection dialog, user can open files in subfolders, open subfolder listings, and URLs too.

与可选的文件选择对话框，用户可以打开文件的子文件夹中，打开子文件夹列表，和网址。

According to Markowitz's portfolio optional selection theory, the pa per set up an combination model for venture investment .

根据 Markowitz的证券组合理论，建立了风险资金的投资组合模型。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。