That can be addressed with multifocal lenses, which have concentric rings of material that offer alternate bands of near and distant vision.

这个问题可以使用多焦点人工晶体来解决，它拥有一些同心圆环，该圆环上的物质能提供交替调节近距离和远距离视力的区带。

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Napa company is working to significantly reduce greenhouse gas emissions by making an alternate to the most common construction material on the planet: concrete.

纳帕公司制作一种在地球上可以交替使用的最常见的建筑材料——混凝土，这种混凝土可以明显地减少温室气体的排放。

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The prior electric descaling is resisted by pipeline material and needs to adopt a high power output and an alternate magnet system.

现有的电子除垢会受到管道材料阻抗，并需要采用大功率的输出和交替式磁体系统。

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These organizations each put out a magazine on alternate months, guaranteeing members of both clubs a steady stream of Model T-related reading material.

FORBES: Magazine Article

Over an hour of all-new bonus material is featured on the Digital and Blu-ray Combo Pack, including deleted and alternate scenes, the theatrical short "Paperman, " plus much more.

ENGADGET: Disney announces Wreck-It Ralph will arrive for download before DVD, Blu-ray