Water - injection system contain headwaters, water - injection station, water distributing station, injection headinjection well site and injection line.
注水系统包括水源 、 注水站、配水间 、 注水井口 、 注水井场及注水管道六部分.
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Trace amount of chromium and nickel was determined using a flow injection line extraction FAAS system.
本文用流动注射-在线萃取火焰原子吸收法测定了人发中微量的铬和镍.
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