回声探测仪

So was born the echo-sounding apparatus , now in general use in ships.

这样就产生了目前各种船舶上普遍应用的回声探测仪。

Was born the echo-sounding apparatus, now in general use in ships.

这样就产生了目前各种船舶上普遍应用的回声探测仪。

So was born the echo-sounding apparatus, now in general use in ships. Every solid

这样就产生了目前各种船舶上普遍应用的回声探测仪。

Point can be calculated. So was born the echo-sounding apparatus, now in general

这样就产生了目前各种船舶上普遍应用的回声探测仪。

What may affect the accuracy of sounding with echo sounder?

答案：D什么会影响回声探测仪的精度？水的温度和密度

What may affect the accuracy of sounding with echo sounder?

Key：D 什么会影响回声探测仪的精度？水的温度和密度

It is a kind of several bunch echos to probe into an instrument and adopt two sets of same water to listen to machine blast-off.

它是一种多波束回声探测仪，采用两套相同的水听器发射阵。

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。