a beam of light造句

Reflection of a beam of light on the diaphragm falls on a phototransistor.
经膜片反射的光束照射到光敏管上.

A beam of light produced by a laser can weld metals.
激光器发生的光束可以焊接金属.

A beam of light produced a laser can weld metals.
激光器发生的光束可以焊接金属.属类:[综合句库]-[-].

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