发问者：你们在多久以前曾使用钟型的载具来到地球？

Questioner: How many years in the past did you use the bell-shaped craft to come to earth?

youdao

对于一张曝光均匀的图像来说，直方图中柱形应该呈现均匀的抛物线(钟型)分布。

For a nice evenly exposed image, the bars on your histogram should be an evenly distributed wide bell curve.

youdao

3对于许多随机变量来说，一个好的选择是正态分布，常常表现为一个钟型曲线，如图1所示。

3 For many random variables, a good choice is the normal distribution, often represented as a bell-shaped curve, shown in Figure 1.

youdao

I should be able to do nice bell-shaped curves, but it's harder than it looks standing up here; so that's your bell-shaped curve.

我还是挺擅长画钟型曲线的,但站着画真的不太容易,这就是钟型曲线

耶鲁公开课 - 金融市场课程节选