1 The frequency chart of damaged structure, which also obeys normal distribution , descends.

2 Besides the common frequency chart. Lorenz curve, and Theil index. the famous Pareto distribution and the lognormal distribution are the authentic proof methods as well.

3 By using the frequency chart analysis instrument analyze the sample of Columnsyn Sensor, it can be verified mathematics model.

4 Compared with the traditional frequency chart instrument, RTSA has special advantages in catching information and decompilation, can be used in various RFID systems.

5 Voiceprint points to a frequency chart of taking the speech information by the show of an electric voice instrument.

6 A frequency chart and relative statistics of time needed are gained. And the influence of each activity on the time needed is determined through sensitivity analysis.

7 A comparison of the two displaying methods of cooling-load rate distribution, that is, time frequency chart and probability distribution curve, is made.