Parts Per Billion,ppb

英文 Parts Per Billion,ppb

中文 十億分之一

出處環境科學大辭典

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▸ Parts Per Billion,ppb

▸ open source software {=OSS}

▸ Triplophysa shilinensis Chen & Yang，1992

▸ Home Health Care

▸ information resource management (IRM)

▸ model, free-electron

▸ Performing Arts Resources (TAP)

▸ series of rocks

▸ Common Mode Rejection Ratio {=CMRR}

▸ backward link

▸ reference block

▸ dimensional reasoning

▸ steel -cored aluminum cable

▸ hydraulic torque converter

▸ nano structure

▸ customer access network

▸ Solarimeter

　