:
1.
2.
1
2
3.
50%
1 . 10% 20% 12%15%25%30%55%65%
1/21/3
ABCD
30%40%30%
35911
1.25%10%2.100
3. 4.5.6. 7.
4. 300Hz300KHz300GHz,
19797175.7cm20007174.4cm
,
Recommended