Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
衛星 TV のパラボラアンテナ：深さ 30 cm、開口 60 cm。焦点はどこ？
衛星 TV のパラボラアンテナ：深さ 30 cm、開口 60 cm。焦点はどこ？
Natural Language
Math Input
Extended Keyboard
