Citrus peels are a promising commercial source for high -methoxyl pectin.

桔皮是一种理想的高酯果胶原料。

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Miners hewed chunks of rock veined with cinnabar, the main commercial source of mercury.

矿工们将含有朱砂的岩石切成一块一块的，朱砂是水银的主要商业来源。

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The country hopes to turn the seafloor deposits of methane hydrates into a commercial source of natural gas.

这个国家希望把海底库存的甲烷水合物转变成一种天然气商业资源。

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Its primary commercial source is natural gas, which has more efficient and beneficial uses.

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Developers can also tap into the world's largest commercial source of Album Cover Art, artist biographies and other related content.

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Points 1, 2, and 3 have been addressed by dozens of companies that are pursuing commercial open source models.

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