The ceiling stretched away high enough to continue the natural supporting curve of the rock and to permit internal air-convection currents.

天花板延伸得足够高，以延续岩石的自然支撑曲线，并允许内部对流。

An air fryer is similar to a convection oven but doesn't bake (or truly fry) your food.

对流烤箱， 但不会烘烤（或真正油）您的食物。

This part of the atmosphere is warmest at the bottom, which means we get convection in the air, creating currents of rising air, which carry water with them, forming clouds, which in turn is why we have weather.

这部分的大在底部是最温暖的，这意味着能产生对流，制造出上升团，这些含有水的上升团形成云，造就了天。