利用数字式局放测量系统获取了大量放电谱图和放电脉冲波形。

Using the digital PD measuring system, plenty of related patterns of discharges and discharge oscillograms are obtained.

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由美国林业局确定的游憩机会谱理论（ROS）被证明是一种最有效的游憩资源规划管理工具，已广泛运用于美国的公共游憩地。

ROS was proved to be the most effective tools about recreational resources planning and management by American Forestry Bureau, which has been widely used in the United states.

youdao

由美国林业局确定的游憩机会谱理论（ROS）被证明是一种最有效的游憩资源规划管理工具，已广泛运用于美国的公共游憩地。

ROS was proved to be the most effective tools about recreational resources planning and management by American Forestry Bureau, which has been widely used in the United states.

youdao