Magic shield: a visible spherical shield which defends anyone inside it from magical spells by bouncing their effects off the surface.

魔法护盾：一个可见的球形护盾，能够弹开魔法攻击保护内部的所有人。

youdao

The first grate has double spherical nets with the same center and outside the second one there is a shield cylinder to make electron congregate.

它采用四极枪结构，两个栅极，第一栅极采用双层同心球面网，第二栅极外还添加了屏蔽筒。

youdao

Among these, we include the "bubble, " a clear spherical shield that travels with you, blocking out unwanted dirt and noise.

FORBES: Magazine Article

As for the hardware itself, the mic arrangement means things can be neatly contained in one spherical shield, rather than two extremities on some stereo recorders.

ENGADGET: Zoom Q2HD Handy Video Recorder lets you stream and record on the move, we go hands-on