Two methods for roaster gas cooling, water jacket and waste heat boiler, are alternative.
烟气冷却有夹套冷却或余热锅炉两种方式。
The enzymatic removal of protein was an effective and alternative for the common methods.
因此，酶提取法是替代常规方法的一种有效方法。
The enzymatic removal of protein was an effective and alternative for the common methods.
因此，酶提取法是替代常规方法的一种有效方法。
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