The paper describes the characteristics of transmission, application, structure, type and Standard of the Synchronous belt and the present production condition is also introduced as well.
综述了同步带的传动特点、应用、结构、种类、标称方法及标准，并对同步带的生产状况作了介绍。
Geochemistry characteristics of Dongsheng uranium ore are much different from that of standard interlayered oxidation type of sandstone uranium ore deposit.
东胜铀矿与典型的层间氧化带砂岩型铀矿床特征明显不同。
The technical requirements and characteristics of Guangdong provincial local standard for oil of Melaleuca alternefolia, Terpinen-4-ol-type(Tea Tree oil) (DB44/T 177-2003) was presented in this paper.
文章介绍了DB44/T 17 7-2003《互叶白千层精油， 松油醇4型（茶树油）》的广东省地方标准技术要求和特点。
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