Because the facture need condition of steam curing and compressing, the complicated technology, rigid operation and relatively high costs, so the application is limited.

由于大都采用了蒸压或蒸养的制作方法，生产工艺较复杂、操作过程要求较严格，产品的生产成本相对较高，在推广应用方面受到一定影响。

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Two troubles in the operation of S-520 scan electron microscope are analyzed and the related circuits are described. The curing methods are explained in detail.

介绍了S-520型扫描电镜实际操作中出现的两种故障现象。对相关电路进行了简要分析。详细说明了故障的排除方法。

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Objective Through research of anatomy of nerves dominating pectoral muscle and intercostobrachial nerves, In design a reasonable mode of operation of curing mastocarcinoma.

目的通过对支配胸肌神经及肋间臂神经的解剖学研究，设计一个合理的乳癌手术方式。

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