求翻译：某 些 化 学装置、用燃料驱动的模型车辆和火箭。这些玩具包含有可能是有害的化学品，一般不能被不会阅读和理解说明及警告的儿童安全地玩耍。建议使用任何这类产品的最低年龄应为8岁 并 且 仅在成人监护下使用。是什么意思？

Some chemical plants, fuel powered model vehicles and rockets. These toys contain potentially harmful chemicals, generally can not be not read and understand instructions and warning the children play safely. Recommend the use of any such products should be the minimum age is 8 years old and only us

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Certain chemistry installment, the model vehicles and the rocket which actuates with the fuel.These toys contain have the possibility are the harmful chemicals, cannot not be able generally to read and to understand explained and warned the child safety plays.And the suggestion uses any this kind of

Chemical devices, fuel-driven model vehicles and rocket. These toys contain possibly harmful chemicals, generally cannot be not read and understand the instructions and warning children play safely. Recommended minimum age for any such products should be 8 years and is used only under adult's guard.

Some chemical plants, fuel powered model vehicles and rockets. These toys contain potentially harmful chemicals, generally can not be not read and understand instructions and warning the children play safely. Recommend the use of any such products should be the minimum age is 8 years old and only us