The material feature, structural and construction essentials of the swivel system are introduced in the paper.

本文介绍了它的材料特性、转动体系构造和施工要点。

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Methods Objective system of nursing management practice was constructed from five essentials such as time resource, information resource, manpower resource, financial resource, material resource.

方法从管理的时间、信息、人力、财力、物力五大基本管理对象体系建构了护理管理实习目标体系。

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The paper explains the controlling essentials, material selections, technical proportion of construction, procedures, matters of attention and self-protection.

阐述了油罐基础沥青砂绝缘层施工质量控制要点、选材、施工工艺配比、施工操作程序及注意事项和自我保护措施。

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