这种阀门需要由得到许可的承包商进行定期检查和确认出水口温度。
This valve requires periodic inspection and verification of the outlet temperature by a licensed contractor.
吉安娜·范泰尔对蛇非常感兴趣，她发现蛇所处的地点越是往北，它们的颜色比南方的蛇就越深。更深的颜色或许可以帮助蛇更好地获取太阳的温度。
Snake fan Gianna Fantell showed that more northerly snakes tend to be darker than those in the South. Darker colors might help snakes soak up the sun's warmth.
这些细胞在许可的温度下生长时，具有转化细胞所特有的糖肽图谱。
These cells exhibited the glycopetide pattern characteristic of transformed cells when grown at the permissive temperature.
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