同时，通讯服务提供商则质疑该方案的成本以及技术上的可行性。

Meanwhile the communications providers themselves questioned the cost of the scheme and whether it was even technically feasible.

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信息高速公路的概念10年前就被提出过，可是在1993年前，信息高速公路还只是停留在研究其技术上的可行性这一阶段。

The concept of information superhighway has been around for more than a decade, but until 1993 it was merely a technological speculation.

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分析了竹纤维开发的意义，从技术上分析了竹纤维开发的可行性，并对竹纤维的开发前景进行了展望。

The significance and the technology feasibility of bamboo fiber's exploitation is analyzed, and the exploitation foreground is prospected.

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