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- To analyze the relationship between CR film quality and different exposal doses. 分析不同的曝光条件对于cr影像质量的影响。
- Objective: To analyze the relationship between CR film quality and different exposal doses. 摘要目的：分析不同的曝光条件对于CR影像质量的影响。
- Conclusion: CR films for diagnosing should be taken with minimum appropriate exposal dose in order to reduce the radiation quantity exposed to patients. 结论：找出或者利用最小的适宜曝光量，取得符合诊断要求的CR片，减少对患者的辐射剂量。
- Methods: CR films of a cadaveric foot were taken on the front view by using different exposal doses.Then CR film quality was evaluated by film density measured on these films. 方法:用CR摄人体足标本,采用不同曝光条件,进行正位摄片,然后对胶片影像进行密度测定,从而判定CR影像的质量。
- Al and Cu are ductility materials.Therefore, the value of COF is more than others.And the next is Ti, and the last is Cr film. 而平均摩擦系数之大小排列以，铝材及铜材延性佳之材料最大，钛材次之，镀铬薄膜最小。
- The single-crystalline Cr films with the body-centered-cubic (bcc) structure are obtained, with the epitaxial relationship of (0 0 1)[0 0 l]||Cr(0 0 1)[001] GaAs and (001)[100]Cr(001)[100]GaAs . 当生长温度低于70℃的时候，Cr以bcc(211) 面平行外延在GaAs(001) 面上，当生长温度超过130℃的时候，Cr以bcc(001) 面平行外延在GaAs(001) 面上。
- That was infinitely better than his last film. 这比他上一部电影不知胜过多少倍。
- Keywords CR film quality;density;appropriate exposal dose; CR影像质量;密度;适宜曝光量;
- Study of Effects on Adhesion of Cr Films Deposited by D.C Magnetron Sputtering 直流磁控溅射铬膜附着性的影响因素研究
- She has a book full of cuttings about her film. 她有一本书贴满了关于她的一些影片的剪报。
- She loves old Humphrey Bogard films. 我非常喜欢老演员亨弗莱鲍嘉主演的电影。
- He has composed a suite of music for the film. 他为该电影配写了一套乐曲。
- That film creates an atmosphere of menace. 那部影片营造出吓人的气氛。
- In his last film he starred as a cowboy. 他在最近的一部影片中主演一位牛仔。
- She is crazed about the film star. 她对那位影星着迷。
- I'm writing up the film for the local paper. 我现在为本地报纸写影评。
- In the evening we went to see a film. 晚上我们去看了一场电影。
- The film has been screened in the cinema and on TV. 这部电影已在电影院及电视上放映。
- The film is now being shown in the provinces. 这部电影现正在外省上映。
- The film star held court in the hotel lobby. 这位电影明星在旅馆的大厅里接见了影迷。
