Proof of consistency by the method of models is an indirect process.
用模型法证明相容性，是间接法。
If there is no direct use, whether in the manufacturing process, there are indirect use?
若无直接使用，是否于制程中，有间接使用？
If there is no direct use, whether in the manufacturing process, there are indirect use?
若无直接使用，是否于制程中，有间接使用？
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