The laser advance, he added, will promote energy security “since it is a domestic source.”
他补充说，“既然激光的进步源于国内，所以激光的进步将会促进能源安全。”
He shot light from a laser out the end of the cable onto the diaphragm.
他从一激光器射出光束，正对有电缆一端的振动膜上。
Objective: To observe the curative effect of He-Ne laser in the treatment of skin infection.
目的：观察氦氖激光照射治疗皮肤感染的疗效。
Objective: To observe the curative effect of He-Ne laser in the treatment of skin infection.
目的：观察氦氖激光照射治疗皮肤感染的疗效。
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