后来成为国家地质博物馆馆长的季强买下了李应方发现的化石标本，因为羽毛结构的缘故，他推测这是一种以前从未发现过的原始鸟类。

Because of the feathers, Ji Qiang, then the director of the National Geological Museum, which bought one of Li's slabs, assumed it was a new species of primitive bird.

youdao

这一方法不产生或不要求处理腐蚀性的季铵氢氧化物。

This method does not produce or require the handling of corrosive quaternary ammonium hydroxides.

youdao

你方的按季提交销售清单支付货款的建议，我方非常满意。

Your suggestion to render accounts and make payments quarterly is quite satisfactory.

youdao