I'm sure you remember some of the simpler rules for differentiation and could quickly tell me that the derivative of x2 is 2x.
我确信你们仍然记得一些简单的规则，并且能够迅速地告诉我x2的导数是2x。
The magma is originated from the mantle and maybe the "derivative magma" rich in volatile and sodium, formed by the differentiation of basalt magma.
熔浆来源于慢源，可能是玄武岩浆分异的、富挥发分富钠质的“派生岩浆”。
The magma is originated from the mantle and maybe the "derivative magma" rich in volatile and sodium, formed by the differentiation of basalt magma.
熔浆来源于慢源，可能是玄武岩浆分异的、富挥发分富钠质的“派生岩浆”。
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