产品以其优良的品质、合理的价格在国内扬声器行业占有一定的地位，是扬声器单元的专业生产厂家。
Products with good quality and reasonable prices in the domestic industry speakers will occupy the position of speaker unit is the professional manufacturer.
编制单元规划的改进可从明确法定地位、制定立法程序、规范编制体制和编制成果等方面入手。
The improvement of the control unit can be done by clarifying the legal status, working out legislation procedure, standardizing the control system and control results, etc.
深层过滤是水处理工程中的基本单元方法，在油田注水处理、石化厂废水治理方面有很重要的地位。
The deep bed filter is one of the basic units in water treatment engineering, it plays an important role in the produced water treatment of oil field and waste water treatment of refineries.
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