The main patterns of the convergent structure are the ramp type and the superimposed one. And their forming periods are Late Eocene Oligoecne.

会聚构造型式以对冲式及叠覆式为主要类型， 形成时期在晚始新世—渐新世。

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In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.

在发送方向，收发信机向功率放大器提供射频信号，功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。

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If necessary, the helicopter could also carry a small-size SUV-type vehicle via its loading ramp.

如果必需，直升飞机也可以经由它的装载斜板携带一辆小-尺寸四轮越野车。

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Instead, it will use the F35B, which will use a ski jump type take off ramp much like the now retired Harrier, and the first operational carrier will be available, says the MoD, in 2018 rather than 2025.

BBC: Why did coalition government change fighter plane plan?