valoneaic acid dilactone.
橡碗酸二内酯

sustainable meaical aid project yural
农村医疗扶贫计划

Arctic seaice was rapidly disappearing.
北极冰层正快速消失。

This thesis presents an introduction of the significant study on dissolved organic matter pools and particle organic matter in seaice systems.
海冰内部冰藻生化组分

Three British explorers are about to embark on a survey to map the Arctic Oceans seaice cover.
三位英国探险家即将启程对北冰洋海冰进行勘查。