Parents have a legal D. obligation to ensure that their children are provided with efficient education suitable to their age.

父母有法定的职责确保孩子享有适合其年龄的有效教育。

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Through the prediction simulation to 7.8 earthquake of Tangshan in 1976, it is shown that the D-S theory is more efficient and superiority in earthquake prediction.

通过对1976年唐山7.8级地震预报的仿真，结果表明：D - S理论在地震预报中具有一定的有效性和优越性。

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We are pleased to introduce a efficient and energy saving rapid cooling heat-transfer tube-D shape (semicircle) seamless steel tube to the refrigeration industry.

现向制冷行业推荐使用一种高效节能的速冻传热管——D型(半圆形)无缝钢管。

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Despite that fact that it took years to convince theater owners to move to the digital projectors needed for 3-D, Katzenberg believes they will be quicker to upgrade because the new projectors are more efficient and will eventually pay for themselves in energy savings.

FORBES: Jeffrey Katzenberg Fires Back at 3-D Critics