A strong dependence of recombination on the existence of a constant illumination has been observed, and this is shown to be a major efficiency-limiting factor for this type of devices.

复合过程对光照的存在有强烈的依赖关系，是限制这类器件效率的主要原因之一。

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It sets the stage for what we expect would be some major efficiency gains as volumes come back on the rails.

FORBES: Railroads

Besides presenting a lot of raw data, we calculate three major efficiency ratios for each nonprofit, and the trend from a previously reported period.

FORBES

They have to look inward, rapidly exploiting economies of scale and making major shifts in operational efficiency.

FORBES: How Telcos Can Contend With Cloud-Based Computing