The optical performance of the fused-taper fiber device is determined by microstructure and morphology of the fused taper region, which are determined by technological conditions.

熔锥型光纤器件的光学性能由熔锥区的微观结构和形貌决定，而微观结构和形貌又由工艺条件决定。

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When a city or region loses its technological edge, the reasons may become clear only in retrospect.

一个城市或地区丧失技术优势的原因，或许只有在回顾历史时才能看清。

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With this reasoning, will technological progress help landscape get out of the region?

如此推论，技术进步会不会促使景观逐渐摆脱地缘的引力？

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D. in automotive engineering, to make their region a major center of technological innovation for the industry.

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The participants agreed to the need to develop more robust ICH information systems both for institutional knowledge management and also for the enhanced visibility of ICH for sustainable development in the region, and identified several constraints including technological infrastructure.

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Before technological advances in hydraulic fracturing, the natural gas in the region had been considered too expensive for access.

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