Multi-stage centrifugal pump is mainly used for high head applications environment, use deep, high-rise residential water supply, fire water supply.

多级离心泵主要用于高扬程的应用环境，应用于深井、高层住宅的供水、消防供水等。

youdao

The head of the agency that handles applications suggests that many school leavers postpone university altogether.

ECONOMIST: University finances

Job seekers, who sometimes aren't clear in stating their requirements, are to blame for misdirected applications, said Sanjay Dasgupta, head of the JobSerf team in Visakhapatnam.

WSJ: The Unemployed Worker's New Friend: Outsourcers

Part of the reason for 6to4's high profile is that its authors are two IETF heavyweights: Brian Carpenter, head of the Internet Architecture Board, and Applications Area Director Keith Moore.

CNN: New protocol sneaks IPv6 traffic over the 'Net