这类客户有大范围的复杂性、伸缩型和适应变化等方面的需求。
Customers of this type occupy a spectrum of complexity, scale and rate of change.
运用上海手术器械六厂生产的伸缩型人工椎体治疗颈椎骨折伴四肢不完全瘫痪2例。
Use of the artificial vertebrae made in Shanghai Sixth Surgical Apparatus and Instrument Factory for 2 cases of cervical spine fractures with incomplete quadriplegia was reported.
简介了伸缩型和分体型活动标石的制作及安装，最后对活动标石与水泥标石进行了经济分析。
The fabrication and installation of extension mark stones and detachable mark stones are presented. Finally, the economic analysis of movable mark stone and cement mark stone is given.
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