无色视觉

In the case of a colorless solution that is titrated directly, the endpoint may be observed visually as a change in color from canary yellow to amber.

当直接滴定无色溶液时，可以在视觉上观察到从淡黄色到红棕色的颜色改变。

Vision when the eye is adapted to levels of luminance below some hundredths of a candela per square meter; the rods are considered to be the principal active elements under these conditions.

调节眼睛以适应几百分之一坎德拉每平方米的亮度水平时的视觉情况。在这种情况下，杆状细胞被认为是主要的活跃成分。光谱是无色的。

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。