He focused the sun's ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上聚成焦点。
He focused the sun's ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上集成焦点。
The first season is also available on DVD and Blu-ray on Tuesday.
第一季的DVD与蓝光碟也将在下周二正式发售。
The beholder likes to use this ray on any foe it considers a real threat.
眼魔喜欢将此射线用于它认为真正有威胁的对手。
Objective to explore the effect of long-term low-dose X-ray on the blood system and genetic material in the health workers and to provide basis for protecting the radiological health workers.
目的探索长期接触低剂量X射线对医务人员血液系统及其遗传物质的影响，为当前放射医务人员的卫生防护工作提供依据。
Objective to explore the effect of long-term low-dose X-ray on the blood system and genetic material in the health workers and to provide basis for protecting the radiological health workers.
目的探索长期接触低剂量X射线对医务人员血液系统及其遗传物质的影响，为当前放射医务人员的卫生防护工作提供依据。
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