President Grant did not wait long to use his powers under the new law.

VOA: special.2010.02.18

v du/dV under constant temperature. du/dT v under constant volume. You use the Joule expansion to find these quantities.

像偏u偏v，恒温下的偏u偏,恒容下的偏u偏,你们知道怎么运用焦耳定律。

麻省理工公开课 - 热力学与动力学课程节选

Scientists would use radar to search for liquids under the ice.

VOA: special.2010.05.25

it allows for direct banking. Right now,under the terms, we have to use a third country bank."

VOA: standard.2010.07.29

In recent years,Chinese toy makers came under scrutiny after U.S.investigators found harmful amounts of lead in products for children and banned the use of lead.

VOA: standard.2010.01.11

Under the two countries' plan, Iran would send some of its uranium to Turkey in exchange for fuel for use in a Tehran medical research reactor.

VOA: standard.2010.06.09

U.N.Special Rapporteur Philip Alston questioned the legality of their use under international law.

VOA: standard.2009.10.27

Under the scheme, Russia would further enrich the uranium to the 20 per cent purity needed for use in a research reactor in Tehran which produces medical isotopes but is running out of fuel.

VOA: standard.2009.10.24