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1)  mobile lead room
活动铅房
1.
Objective To develop a simple mobile lead room to reduce the scattered radiation to adjacent patients and medical staffs.
目的:在患儿床旁照相时,为使周围患儿及工作人员减少X线散射线辐射,自制了简易活动铅房,达到了预期设想,体现出临床应用价值。
2)  retractable pencil
活动铅笔
3)  atrial activity
心房活动
1.
For estimating the atrial activity of patients with atrial fibrillation(AF),AF signals must be subtracted.
为从体表心电图估计房颤期间患者的心房活动状态,需进行房颤信号提取。
4)  mobile building
活动房屋
5)  Erecting [英][i'rekt]  [美][ɪ'rɛkt]
竖房活动
1.
The Research on Traditional Dwellings Erecting of Bai Nationality in Dali;
大理白族民居竖房活动研究
6)  mobile house
活动房
1.
Experimental research on assembled mobile house under wind load
拼装式活动房在风荷载作用下的试验研究
2.
Along with social development and the improvement of technology on building manufacture, the mobile house has acquired widely application in every walk of life by right of comfort, convenience, excellence in protecting environment.
随着社会发展和建筑制造技术的不断提高,活动房以其舒适、方便、环保等特点,在各行各业中得到了广泛应用。
3.
The paper studied behavior of extendable container mobile house under snow loads and wind loads with software NASTRAN,and applied structural experiment on half of vertical structure under 20cm snow loads and 10th grade wind loads of X-direction.
本文运用 NASTRAN 软件对扩展集装箱式活动房进行雪载和风载作用下的有限元分析,并对纵向1/2整体结构进行了 20cm 雪载和 X 向10级风载结构试验。
补充资料:铅-铅测年
分子式:
CAS号:

性质:238U和235U两个母体铀同位素的特性实质相同,所产生的放射性成因206,207Pb的方程可合并为(207Pb/206Pb)=[(235U/238U)](t-1)。235U/238U现在的比值是1/137.8,利用非放射性成因‘稳定’204Pb作为参考同位素,作(207Pb/204Pb)与(206Pb/204Pb)的Pb-Pb等时线,应用方程计算年龄,式中(207Pb/204Pb)和(206Pb/204Pb)0是初始比值。

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