In this paper, the principle of HCBK flame -proof telephone with program control and common-battery telephone public-address is introduced.

本文介绍了集程控和共电式扩音功能于一身的HCBK系列程控防爆扩音对讲电话机的工作原理。

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At the closing bell, NCR is up about 0.1%, while HCBK is off about 0.1% on the day Thursday.

FORBES: NCR Corp. Larger Than S&P 500 Component Hudson City Bancorp

When Hudson City Bancorp (HCBK) reports its fourth quarter results on Wednesday, January 30, 2013, analysts are expecting to see the company back in the black.

FORBES: Earnings Preview: Hudson City Bancorp

According to the ETF Finder at ETF Channel, NCR and HCBK collectively make up 1.00% of the Fundamental Pure Mid Value Portfolio ETF (PXMV) which is up by about 0.5% on the day Thursday.

FORBES: NCR Corp. Larger Than S&P 500 Component Hudson City Bancorp