substitutor

常見例句

• Test results show that it has the advantages of good insulation effect, long life, low cost and simple making process.It is the substitutor of import insulating sleeve and has widely applied prospect.
  驗證結(jié)果表明:該冒口套具有保溫效果好,壽命長,價廉,制作工藝簡單,是進口冒口套的替代品,具有推廣應用價值。
• exam substitutor
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