The use of stoneware cocks is not considered to be safe enough.

使用陶制的活栓，认为是不够安全的。

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For all the ape fossils, stoneware, and fossil of mammals unearthed at the Peking Man Site, other sites of the same age are not its match regarding quantity and miscellany of "fire" remains.

在周口店北京人遗址出土的猿人化石、石制品、哺乳动物化石种类数量之多以及用火遗迹之丰富，都是同时代其它遗址所无法相比的。

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