Lumber is used circularly develop flourishingly in europe .

木材循环利用在欧洲蓬勃发展。

Design of wideband circularly polarized slot antennas and arrays .

宽频圆极化槽孔天线及阵列设计。

This is a song from the same species of whale as the previous linear graphs , but plotted circularly .

这是用上幅图中同样的声音信号形成的线性图像，不同的是图像围成了一个环形。

Monopole antenna circularly polarized leaky-waveantenna on-chip antenna .

单极天线圆极化泄漏波天线晶片型天线.

Utilize resources circularly and protect environment well .

资源循环利用和环境保护。