technical crystallization
技术的结晶
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The purification of technical naphthalene by stepped static crystallization method in cracked aromatic fraction, which is rich of naphthalene has been developed.
以富含萘的裂解芳烃馏分为原料，开发静态分步结晶法从芳烃馏分中提纯工业萘。
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