The list is kept by the International Union for Conservation of Nature.

VOA: special.2010.04.20

We use the concept of conservation of states and the Aufbau Principle.

我们利用该状态的概念,和构造原理。

麻省理工公开课 - 固态化学导论课程节选

So, what's the conservation of mass if we divide by the atomic masses here?

那么质量守恒是什么呢？,如果我们在这儿按原子质量划分？

麻省理工公开课 - 固态化学导论课程节选

"Therefore,to be able to shift the behavior of these people, to look at the turtle the other way around, then you have to involve them in the conservation of the same."

VOA: standard.2010.07.15

It talks about the conservation of energy.

它讲的是能量的守恒。

麻省理工公开课 - 热力学与动力学课程节选

She says the main message of the report is that conservation measures work when they are put in place.

VOA: special.2009.05.12

The notion of conservation is that there's ways to transform things such that some aspects of them change but others remain the same.

守恒是指物体某方面的特征,不会因为其他方面特征的改变,而有所改变

耶鲁公开课 - 心理学导论课程节选

But one of the authors of the study, Tim McClanahan from the Wildlife Conservation Society, says fisheries in Africa face another threat.

VOA: special.2009.08.11

We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.

我们援引了摩尔分数的道尔顿定律，要服从质量守恒定律。

麻省理工公开课 - 固态化学导论课程节选

Conservation groups criticized the move, saying the cut is not big enough to support the recovery of bluefin tuna in the Mediterranean.

VOA: special.2010.12.14

We write it subject to conservation of mass.

要服从质量守恒定律。

麻省理工公开课 - 固态化学导论课程节选

The Institute opened on the grounds of what was formerly the National Zoo's Conservation and Research Center.

VOA: special.2010.06.22

Conservation of keystrokes.

避免按键错误。

麻省理工公开课 - 固态化学导论课程节选

Until two years ago, the Red List of Threatened Species of the World Conservation Union said Przewalski's horses were extinct in the wild.

VOA: special.2010.06.22

Another significant finding Piaget had about this phase of development concerns what's called "conservation."

皮亚杰在该发展阶段中的另一个重大发现,就是"守恒"

耶鲁公开课 - 心理学导论课程节选

You can also get more information about windbreaks and other forms of soil conservation at enterpriseworks.org.

VOA: special.2011.07.12

The next phase, concrete operations, from seven to twelve, you can solve the conservation problem, but still you're limited to the extent you're capable of abstract reasoning.

下一阶段,具体运算阶段,七到十二岁,儿童可以解决守恒问题,但儿童的抽象推理能力仍然有限

耶鲁公开课 - 心理学导论课程节选

The Getty Conservation Institute is cooperating with Egypt's Supreme Council of Antiquities on the project.

VOA: special.2009.12.15

So claims that--about the failure of conservation in children at different ages could be easily tested and systematically tested, and in fact, there's a lot of support for them.

关于不同年龄阶段的儿童,缺乏守恒概念的论断,能够很轻易的得到系统的检验,事实上,有相当多的证据支持这些论断

耶鲁公开课 - 心理学导论课程节选

The Smithsonian Conservation Biology Institute studies and cares for thirty-three kinds of animals there.

VOA: special.2010.06.22

Jeanne Marie Teutonico is the associate director of the Getty Conservation Institute.

VOA: special.2009.12.15

One method of soil conservation is the use of windbreaks.

VOA: special.2011.07.12

So he was seen as an enemy of conservation.

VOA: special.2010.09.02

For example, the New York State Department of Environmental Conservation lists some dos and don'ts of composting on its Web site: Do add lime, small amounts of wood ashes or crushed eggshells to the compost pile.

VOA: special.2009.06.23

Members of a local conservation group, Watamu Turtle Watch, have been observing the nest for a couple of days.

VOA: standard.2010.07.15

Im Sambath heads the Cyclo Conservation and Career Association, which looks out for the interests of the drivers.

VOA: standard.2010.06.14

They are part of Conservation Canines, a project at the University of Washington in the U.S.

VOA: standard.2010.02.22

Each year the Washington-based League of Conservation Voters releases a scorecard that rates the performance of members of Congress on environment and energy issues.

VOA: standard.2010.02.25

League of Conservation Voters president Gene Karpinski says opposition from the oil industry is another major roadblock to congressional passage of a comprehensive climate bill.

VOA: standard.2010.02.25

The Sea Shepherd Conservation Society says one of its boats,the Ady Gil, a sleek high-technology speed boat, was rammed and sliced in half by a Japanese ship,the Shonan Maru.

VOA: standard.2010.01.06