When you want to determine whether a given row includes a comment, you no longer need to check for a null value in the COMMENT column.

Existing Ad Hoc network routing protocols which focus on different angles on the wireless multi-hop routing problem has been studied and optimized on one or several indicators for different applications.

已有的ad hoc网络路由协议从不同角度对无线多跳路由问题进行了研究，对某一个或几个指标进行了优化，适用于不同的应用环境。

My reduce function will then sum up the counters ( which are just integers with the value of1), thus providing me with the number of times a date occurs in a target earthquake file.

reduce函数将对计数器（只是一些值为1的整数）进行总计。因此，提供给我的是在目标地震文件中某一个日期出现的次数。

If one DB2 subsystem goes down, or brought off-line for maintenance, other DB2 subsystems in the data sharing group take on the workload of the data sharing member that is now offline.

如果某一个DB2子系统停机，或者出于维护的目的暂时离线，那么数据共享组中的其他DB2子系统就会接管目前离线的数据共享成员的工作负载。

OBJECTIVE : To study the content changes of the acid ingredients in Flos Ionicerae at different time.

目的考察不同时期金银花中酸性成分的含量变化.

Objective To identify 17 species of Flos Lonicerae.

目的鉴别17种金银花的质量.

Result: A TLC identification method of Flos Magnoliae has been established.

结果: 建立了辛夷的薄层鉴别法.

Objective : To establish a TLC identification method for Flos Magnoliae.

目的: 建立辛夷的薄层鉴别方法.

Objective To find a better way to dry and use Flos Carthami.

目的选择较佳的红花干燥及服用方法.

Yield and quality of Flos Lonicerae varied in different phenological phase.

不同物候期采收的金银花产量和质量存在显著差异.

The FLIR B 660 infrared camera uses an advanced, highly-sensitive detector for non-contact scanning across wide areas.

B660的前视红外红外摄像机采用先进的, 高度敏感探测器的 非接触式 扫描的广泛领域.

Discover how FLIR's new B 660 infrared camera can make diagnosing building troubles fast and easy.

了解红外新B660红外摄像机可以建立故障诊断快速和容易.

He always meant to go back one day, but not to stay.

他总想某一天回去, 但不住下.

It appeared that he had a taste for music.

看来他对音乐还有一定的鉴赏力.

A I also like the big, dramatic events at the Olympics.

A我也喜欢奥运会上的大型的 、 壮观的比赛项目.

BMaybe you can get a ticket for those events.

也许你能买到这些比赛项目的门票.

The event altogether has more than 30 major terms.

比赛项目共有三十多个大项.

The marathon was NOT an event of the ancient Olympic games.

马拉松赛跑并非古代奥林匹克运动会的比赛项目.

The ancient Olympics had a rich variety of games.

古代奥运会有不同种类的比赛项目.

In the earliest Games, foot racing was the only sport and was over in one day.

在最初的奥运会上, 赛跑是唯一的比赛项目,一天内即可赛完.

Please call me in case anything happens.

万一发生什么重要事情,请打电话给我.