rare elements 稀有元素 ; 罕见元素 ; 罕有元素
rare earth elements 稀土元素 ; 元素 ; 稀土族元素
rare elements mineralized 稀有元素矿化
rare gas elements 惰性气体元素
geochemistry of rare elements 稀有元素地球化学
Light Rare Earth Elements 轻稀土元素
rare earth elements pattern [地质] 稀土配分模式
geochemistry of rare earth elements 稀土元素地球化学 ; 稀土元素地球化学研究
Besides, there are lot of other chemical resources as well as potassium, including salt, bromine, magnesium salt, rare elements and nuclear energy materials.
除钾盐外,海水中还富含海盐、溴素、镁盐等化学资源以及稀有元素和核能物质。
参考来源 - 凹凸棒土对海水中主要离子交换能力的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This sediment layer is enriched in the rare metal iridium and other elements that are relatively abundant in a meteorite but very rare in the crust of Earth.
这一沉积层富含稀有金属铱，以及其他在陨石中较丰富而在地壳中十分罕见的元素。
It is the first time attainable rare earth elements were confirmed on the seafloor.
这是海底可利用的稀土元素资源量首次得到确认。
The nearside also has much more kreep-potassium, rare-earth elements, and phosphorus-according to scientists.
据科学家称，月球近地端含有更多的克里普矿物，稀有地球元素钾，还有磷。
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