SHORT CODES

h1. Bootstrap heading

Semibold 36px

h2. Bootstrap heading

Semibold 30px

h3. Bootstrap heading

Semibold 24px

h4. Bootstrap heading

Semibold 18px
h5. Bootstrap heading
Semibold 14px
h6. Bootstrap heading
Semibold 12px

高频头探针的布置不同,造成极化角的不同。这个问题,往往发生在c波段天线的调试上,由于不同品牌的高频头其探针得分布不同

60% Complete
40% Complete (success)
20% Complete
60% Complete (warning)
80% Complete (danger)
60% Complete
35% Complete (success)
20% Complete (warning)
10% Complete (danger)

Panel title

Panel content

Panel title

Panel content

Panel title

Panel content

Panel title

Panel content

Panel title

Panel content

Panel title

Panel content

Default Primary Success Info Warning Danger

Default Primary Success Info Warning Danger

Default Primary Success Info Warning Danger

Default Primary Success Info Warning Danger

Default Primary Success Info Warning Danger
Default Primary Success Info Warning Danger

Default Primary Success Info Warning Danger

Optional table caption.
# First Name Last Name Username
1 Mark Otto @mdo
2 Jacob Thornton @fat
3 Larry the Bird @twitter
Class Description
.active Applies the hover color to a particular row or cell
.success Indicates a successful or positive action
.info Indicates a neutral informative change or action
.warning Indicates a warning that might need attention
.danger Indicates a dangerous or potentially negative action
# Column heading Column heading Column heading
1 Column content Column content Column content
2 Column content Column content Column content
3 Column content Column content Column content
4 Column content Column content Column content
5 Column content Column content Column content
6 Column content Column content Column content
7 Column content Column content Column content
8 Column content Column content Column content
9 Column content Column content Column content

Popular Posts

卫星电视套餐介绍
终极淘汰传统卫星天线
中星九号卫星
网络高清卫星电视iptv卡顿原因分析
韩国高清节目

Instagram

可见,从卫星发射的电波经抛物面任一点反射后再到焦点的行程是一个定值。由此还可以看到,有关“只有当焦距与天线口径之比,即f/D=1/4时,从卫星发射的电波经抛物面任一点反射后再到焦点的行程才是一个定值”的说法是一个错误的概念。但f/D 是设计天线的一个重要参数,在馈源已经确定的前提下,若 f/D的值过大,会造成天线后面的环境噪声进入馈源;若 f/D 的值过小,则导致天线边缘反射的电波进入不了馈源,降低天线的有效面积!