求翻译：现场乙炔瓶储存量不得超过5瓶，5瓶以上时应放在储存间。储存间与明火的距离不得小于15m，并应通风良好，设有降温设施、消防设施和通道，避免阳光直射。是什么意思？

Acetylene bottle storage site shall not exceed 5 bottles, 5 bottles of the above should be placed in storage. The distance between the storage and open flame shall not be less than 15m, and should be well ventilated, with cooling facilities, fire facilities and channels, to avoid direct sunlight.

On-the-spot acetylene cylinder storage shall not exceed more than 5 bottles, 5 bottles should be placed in storage. The distance between storage and flame shall not be less than 15 m, and should be well ventilated, and equipped with cooling facilities, fire-fighting facilities and access to avoid di

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Field acetylene cylinder stock cannot exceed 5 bottles, 5 bottle above should be on stores. Distance between stores and open fires must not be less than 15m, and should be well ventilated, with cooling facilities, fire control facilities and channels, avoid direct sunlight.

Acetylene bottle storage site shall not exceed 5 bottles, 5 bottles of the above should be placed in storage. The distance between the storage and open flame shall not be less than 15m, and should be well ventilated, with cooling facilities, fire facilities and channels, to avoid direct sunlight.