就像巨大两盏探照灯，激发后的气体被定向发射到反锥体中。

The excited gas is beamed into the oppositely directed cones like two giant searchlights .

就像巨大两盏探照灯,激发后的气体被定向发射到反锥体中.

The excited gas is beamed into the oppositely directed cones like two giant searchlights.

设计了些微变形的熔融石英微球体，其中回音廊模式可从微球体的边界定向发射。

We fabricate slightly deformed fused-silica microspheres in which whispering gallery modes possess remarkably directional escape emission from the microsphere boundary.