The dimension standard is not only main symbol of tubular goods manufacturer, but also is the important base for designing pipeline, other structure and mechanical usage pipes.
焊接和无缝压延管是钢管和其他金属管的两种主要制造方法，其尺度标准既是管材制造商生产能力的主要标志，也是管道及其它结构和机械用管设计的重要依据。
Bed planting improves soil fertility and structure and helps reduce erosion, water usage, herbicide use and facilitates mechanical and manual weeding.
垄播改善了土壤肥力和结构，对减少流失、水的利用和除草剂的施用也有帮助，也方便了机械和人工除草。
Usage: used for lacquer and glue trickling of rotors of electric tool motor, starting motor, permanent magnetism motor, clutch motor etc. , enhance mechanical strength, improve motor lifetime.
用途：用于电动工具电机、起动电机、永磁电机、串激电机等转子的滴漆滴胶，增强机械强度，提高电机寿命。
Usage: suitable for micro motor punching sheet pressing to shaft or similar mechanical pressing and assembling.
用途：适用微电机冲片入轴或类似机械压入装配。
Experienced in mechanical manufacture and equipment usage.
有一定的机械设备制造或使用经验。
Pump shaft seal is designed to end in two forms, one for the mechanical seal, one is packing seal, may be based on specific usage and user requirements to determine.
泵轴端密封设计为两种形式，一种为机械密封，一种是填料密封，可根据具体使用情况和用户要求确定。
Usage: use motor iron core, bearing pressing, punching stretch and mechanical pressing etc.
用途：本机适用电机铁芯、轴承压装、冲压拉伸以及机械压装等。
The paper mainly states the usage, maintenance and administration of production mechanical facilities in collieries, which is of guiding significance for mechanical facilities administration.
论述了煤矿生产机械设备的使用、维护和在我矿机械设备管理中的指导作用。
And the methods of the improvement of usage properties by enhancing impact resistance and mechanical strength of PET are simply stated.
并简单介绍了提高PET抗冲击性和机械强度，相应改善其使用性能的方法。
The main problems met in the course of the development of the EF Bonding Agent and the main mechanical property, rheological properties and usage are also discussed.
讨论了这种EF型粘合剂研制过程中遇到的主要问题，并介绍了它们的主要力学性能、流变性能和使用方法。
The obtained microstructure is fully dense and evenly distributed. The mechanical properties are somewhat higher than that for casting, and meet the requirement for real usage.
零件组织致密， 成分均匀，力学性能较铸态有所提高，能满足直接使用的性能要求。
The results indicated that joining usage of mechanical method and chemical one could produce better effect.
认为机械方法和化学方法的结合洗涤造纸毛毯效果较佳。
What the above mechanical and electrical products' concept is in the supervisory work forms gradually is precisely is established by usage the concept.
上述机电产品的概念是管理工作中逐渐形成的且是约定俗成的概念。
What the above mechanical and electrical products' concept is in the supervisory work forms gradually is precisely is established by usage the concept.
上述机电产品的概念是管理工作中逐渐形成的且是约定俗成的概念。
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