So to strengthen her case, Dr Boss placed a special plastic called CR-39 next to the hot electrode.

因此，博斯博士为了巩固自己的观点，在热电极旁置放了一种名为CR - 39的特制塑料。

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Objective:To obtain suitable digital radiologic exposure factors of CR and DR by measuring stability of their X-ray tube voltage and exposure time.

目的：通过测试数字成像设备的X线机管电压和曝光时间稳定性，探讨数字成像摄影条件的选择原则。

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In addition, this article expounds how DR and CR take images, how to equip and use them in the radiodiagnosis section and differences between them.

同时阐述DR、CR照像系统如何取像及在放射诊断科如何配置及使用，并讨论了DR与CR的不同点。

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Yesterday, the SEC filed a complaint against University of Michigan neurologist Dr. Sidney Gilman and Matthew Martoma, a former portfolio manager for CR Intrinsic, a division of hedge fund behemoth SAC Capital Advisors.

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