楼面结构出现裂缝的原因十分复杂，有材料、温度变化等原因，也有施工等方面的原因。
The floor structure presents the crack the reason to be very complex, has reasons and so on material, temperature change, also has aspect and so on construction reasons.
楼面结构出现裂缝的原因十分复杂，有材料、温度变化等原因，也有施工等方面的原因。
The floor structure presents the crack the reason to be very complex, has reasons and so on material, temperature change, also has aspect and so on construction reasons.
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