Forget using a pool cleaning machine that costs hundreds to run a year, tennis balls can be used as a pool cleaner.

使用一个泳池清洗机每年要花费数百美元，所以赶紧弃用吧，网球们完全可以代替它清洁泳池。

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Db2 page Cleaner (db2pclnr) : Equivalent to DBWR process in Oracle, this process cleans the buffer pool before pages from the disk are moved into the BP.

db 2 Page Cleaner (db2pclnr)：相当于Oracle中的DBWR进程，该进程在将页从磁盘上转移到BP中之前，清理缓冲池。

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Contrary to the river, swimming pool is much cleaner and more standard.

和江河相反，游泳池更干净而且更标准化。

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It measures force to determine 3-dimensional position, such as deep, shallow, horizontal or vertical, and adapts the pool cleaner for maximum cleaning action.

ENGADGET: Polaris' pool-cleaning robots get updated with added intelligence, four-wheel drive

The 38-year-old pool cleaner lost a sing-off against Rachel Hylton with a performance of the Simon and Garfunkel hit Bridge Over Troubled Water.

BBC: Daniel Evans gets X Factor boot

Polaris cleaners are the number one recognized brand of pool cleaners in the swimming pool industry and have enjoyed more than 40 years as the top selling pressure pool cleaner.

ENGADGET: Polaris' pool-cleaning robots get updated with added intelligence, four-wheel drive