The extraction replica key techniques for TEM sample preparation of low alloying high strength steels were introduced in detail.
同时，针对样品制备过程中的各个关键步骤和环节，提出了低合金高强钢萃取复型样品制备的关键技术要点。
The extraction replica key techniques for TEM sample preparation of low alloying high strength steels were introduced in detail.
同时，针对样品制备过程中的各个关键步骤和环节，提出了低合金高强钢萃取复型样品制备的关键技术要点。
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