Fache backed away from the body and raised the black light again, letting the beam spread out in a wider Angle.

法希从尸体旁向后退了退身，再次高举起黑光灯，使光线从更大的角度散发出来。

youdao

The coupling among laser modes and the relations between equivalent beam spread Angle and the surface deformation of the mirrors are obtained.

给出了激光模式之间的耦合以及等效光束发散角与镜面变形量之间的关系。

youdao

A 10MHz, 0.5in. dia. , search unit is placed on steel and acrylic plastic in succession. The beam spread in these two materials is approximately.

直径0.5吋的直探头放在钢板上，钢板后紧贴有丙烯树脂塑料。声束在两种材料中的扩散角约为（ ）。

youdao

When the disease has spread such that one radiation beam cannot safely encompass all of it, the disease is treated with chemotherapy.

CNN: What is Hodgkin lymphoma's effect on the lymphatic system?

This lets a built-in microprocessor adjust the brightness and the spread of the Nao's beam accordingly.

WSJ: The Petzl Nao: A Smarter Light | At Play