If we do not control energy demand, supply and demand gap will be gradually expanded.

如果不对能源需求加以控制，供需缺口将逐步扩大。

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By adjusting the axial position of the roller shelf and the pump body, gap between pressure-bearing pipes changes within a certain range, thereby the application scope of the pump head is expanded.

该蠕动泵通过调节滚轮架与泵体的轴向位置，使压管间隙在一定范围内变化。从而扩展了泵头的使用范围。

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At last, the gap expanded to almost three miles when she crossed the finish line. We couldn't help but watching her twinkling in the twilight, at the direction of two o'clock.

最终，在他们通过加分门标的时候，我们落后3海里，但是黑夜里我们依然可以清晰的看到芬兰号的微弱的灯光在右舷前方两点钟方向。

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The existence of hidden income has expanded the income gap remarkably, in our opinion.

FORBES: The Chinese Have $1.5 Trillion In Hidden Income

If anything, Social Security and Medicare should be expanded to cover the huge gap in retirement savings and health care coverage.

FORBES: Fiscal Cliff Follies: Four Myths

Developed at Wagner's request at a time when the technical capabilities of modern brass instruments were being expanded, it enabled him to fill a gap in tone color between the mellow lyricism of the horns and the penetrating brilliance of the trombones.

WSJ: It Takes Brass to Play the Wagner Tuba | By Barbara Jepson | The Ring of the Nibelung