Telegraph lines presented a similar economic challenge-high start-up capital and low marginal operating costs.

电报线路提供了类似的经济挑战——很高的启动资本和很低的边际运营成本。

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Whenever users and servers are connected to the Internet over low-speed connections or on high-traffic routes, HTTP compression can keep the lines of effective communication open.

如果用户和服务器通过低速连接或高流量的路由连接到 Internet，HTTP 压缩将能实现线路的有效通信。

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Quail lines selected for high and low stress in Department of Poultry Science, LSU, USA were fingerprinted by RAPD analysis of genomic DNA to evaluate genetic polymorphism.

本研究对美国路易斯安那州立大学家禽系选育的高应激和低应激两个品系鹌鹑进行RAPD分析，评定其遗传多态性。

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The various pieces would then be lined up and laminated together to form a working print head, a process which required HP to have two different manufacturing lines and product designs for low-end and high-end print heads.

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Telegraph lines presented a similar economic challenge high start-up capital and low marginal operating costs.

ECONOMIST: Economics focus

Furthermore, when compared to low-resolution displays that hindered by jagged lines and characters, this ultra-high resolution display enables exceptionally clear lines, letters and characters approaching typographic quality levels.

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