问题描述：
英语翻译
由于我们实验室没有你所说的那种煮食环境,我们没办法100%保证装上这个模型后炉子可以安全工作.所以我们不能写这份批准书.反而你坚持需要用这个装在你的炉子上,我们需要你填写一份品质协议.
问题解答：
我来补答
As our lab wasn't born to have a cooking surrounding with it, we can't ensure to the full extent the safe use of the oven when this model is installed. As a result, we are in no way able to sign this certificate of approval. If you insist on installing it to your oven, we must have you fill out this quality agreement form.
如果炉子上面是一个封闭式的环境,我们可以批准
-------We won't approve of it unless there is an enclosed surrounding above the oven.
/ We will approve of it only if there is an enclosed surrounding above the oven.
再问： 谢谢，还请翻译下， 如果炉子上面是一个封闭式的环境下使用，我们可以批准
再答： 谢谢，还请翻译下， 如果炉子上面是一个封闭式的环境下使用，我们可以批准 -------We won't approve of it unless there is an enclosed surrounding above the oven. / We will approve of it only if there is an enclosed surrounding above the oven.
