Conservation of time, energy, and focus are his hallmarks.

节约时间、精力充沛和专心致志是他的突出特点。

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Because the bones had been buried for the same amount of time and in the same conditions, the conservation method had to be blamed.

因为这些骨头被埋在地下的时间和条件都是一样的，所以这种保护方法是有问题的。

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On the other hand, were time symmetry to break down, conservation of energy would fail.

另一方面，如果时间对称性被破坏/不再成立，能量守恒就也随之不再成立。

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From ancient shipwrecks to underwater caves, this photo exhibition is an insight to the diversity of the underwater cultural heritage and its astonishing condition of conservation through the centuries of time, or even millennia.

UNESCO: MEDIA SERVICES

She's been a champion of the Land and Water Conservation Fund and so many other conservation issues of our time.

WHITEHOUSE: President Obama Nominates Sally Jewell as Secretary of the Interior | The White House

Chinese geoparks will continue to develop but they are also keen to share their experiences of conservation and sustainable development, especially at a time when geoparks are becoming increasingly popular: as of June 2012, the global network counted 88 geoparks in 27 countries.

UNESCO: MEDIA SERVICES