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Some kind polyether and fire retardant are chosen.
对聚醚及阻燃剂作了选择试验。
youdao
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Moreover, they are also an important raw material for producing composite polyether.
同时也是配制组合聚醚的重要原料。
youdao
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Moreover, they are also an important raw material for producing composite polyether.
同时也是配制组合聚醚的重要原料。
youdao