1、
其结构与ASTM卡片记载的MgY4Si3O（13）的结构相同，属于六方晶系。
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2、
75 mGy γ-irradiation before chemotherapy may have certain protective effect on DNA damage.
化疗前给予75mGyγ射线照射对DNA损伤可能产生一定的保护作用。
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3、
Entrance surface dose measured from X ray examined population was ranged from 0 21 to 33 3 mGy.
X射线诊断受检者入射体表剂量021～3330mGy。
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4、
Individual thyroid doses ranged from a few tens of mGy to several tens of Gy.
个体甲状腺剂量的幅度在几十个mGy至几十Gy个之间。
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5、
6、
The average doses were 6 97 and 6 87 mGy caused by photography for teeth and pelvis.
牙科口内片、胃肠造影和骨盆摄影的平均受照剂量分别为697、695和687mGy；
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8、
