The Houston Ship Channel is clogged with beef fat. Unlike petroleum, which has a colorful sheen on the water's surface, beef fat turns into a solid cake, looking like a waxy ice flow.

休斯敦航道被牛肉脂肪堵塞了，不像在水面带有多彩光泽的石油，牛肉脂肪变成一块实心饼，看起来像条蜡状冰流。

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Petroleum is the general term for solid, liquid or gaseous hydrocarbons.

石油是固体，液体或气体碳氢化合物的总称。

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Petroleum exploration and resource evaluation system has characteristics of solid theoretical basis, advanced algorithm, convenient usage and wide application.

石油勘探和资源评价系统具有理论基础扎实、 算法先进、使用方便、应用广泛等特点。

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Households with oil-fired central heating, and those using solid fuel or liquid petroleum gas to heat their homes, are much more likely to be in fuel poverty than "on-grid" households.

BBC: Winter Fuel Allowance Payments Bill

Petroleum coke is the solid black gunk left over at the end of the oil refining process.

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