呼吸描记器

Experiment 4: Air of different volumes and frequencies are pumped into flow plethysmograph.

实验3：用呼吸机和微量加样器制造不同类型的流量，再利用二者以固定频率相同容量往体积描记箱内通气，验证不同流量产生的压力变化是否不同。

A record of breathing made with a spirograph.

呼吸描记器做的呼吸记录。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。