undulating surface

Orthogonal curvilinear grid generation technique used for numeric simulation of geophysical fields in undulating surface condition

用于起伏地表条件下地球物理场数值模拟的正交曲网格生成技术

The terrain is mostly undulating to somewhat flat. The land form being a well dissected terrace with some calcareous influence in lower layers. The sea floor of this continental shelf usually undulates gently, rising occasionally to the surface in offshore banks or island.

地形由颇为起伏转为较平缓地带，田地为分割台地，其底层受钙质影响。这个大陆架海底通常缓慢起伏，偶尔以岸外的砂洲和岛屿的形式露出水面。

Undulating hills on surface, ocean, sea, Bay, Lake and other special name.

月面上山岭起伏, 还有洋 、 海 、 湾 、 湖等各种特种名称.

For the active acoustic fuze for a torpedo on the basis of the distance measurement done by using acoustic pulses, the echo of a randomly undulating wave is a main disturbance to recognize a surface ship.

基于脉冲回声探测的主动声引信识别水面舰船，随机起伏的波浪回声干扰是限制其可识别水面舰船最小吃水的主要因素。

The undulating movement of the surface of the open sea.

外海海面的波浪形的运动。