缓和剂

在核反应堆中作润滑剂和缓和剂。

Used as a lubricant and as a moderator in nuclear reactors .

用水作为冷却剂和缓和剂；产生的水柱能驱动水轮发动机。

A nuclear reactor that uses water as a coolant and moderator ; the steam produced can drive a steam turbine .

由于少用或没用缓和剂而由快速中子引起的裂变反应。

Nuclear fissions are caused by fast neutrons because little or no moderator is used .

吸烟有害健康香烟可不能充当缓和剂，也无助于人控制情绪，相反，对尼古丁的依赖性却能增加人的压力。

Step 6 : Smoking Far from acting as a relaxant and aid for mood control , nicotine dependency acts as an aid for stress . If you 're a smoker try using healthy coping strategies instead .

很多公司正在围绕新型的核裂变方法展开试验，比如使用液态燃料，或是使用不同形状的固态燃料（如砖型或卵型），以及使用盐或气体作为冷却剂与缓和剂等等。

A host of startups are experimenting with different approaches including the use of liquid fuel , the use of solid fuel with different shapes ( such as bricks or pebbles ), and the use of alternative coolants and moderators such as salts and gases .