Results the pixel mean value of the image in region of interest was not influenced by the exposure tube voltage or mAs.
结果感兴趣区像素值均值基本不随管电压和毫安秒的变化而改变。
You can't reverse all your past exposure, but you can prevent future damage: Wear protective clothing (like long sleeves) and get your tan from a tube, not a tanning bed!
不能改变以往被晒的事实，但是你可以防止今后的伤害：穿保护衣物(如长袖衣服)，通过管子把皮肤变成古铜色，而非晒太阳床。
To determine whether the installation of deep tube Wells to reduce exposure to groundwater arsenic in rural Bangladesh had an effect on the incidence of childhood diarrhoeal disease.
确定孟加拉国农村地区用以降低地下水砷暴露的深管井的安装对儿童发生腹泻的影响。
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。
An oxygen -supply pipe and suction tube are settled on the bottom and side of tongue-spatula to provide oxygen and absorb phlegm simultaneously on exposure of glottis.
在镜片的下侧和背侧，分别装有供氧管和吸痰管，可在暴露声门的同时供氧和吸痰。
Reasonable duct design to the glass tube and rapid cooling, easy to use continuous exposure, can greatly increase the work efficiency.
合理的风道设计使灯管及玻璃快速冷却，方便连续曝光使用，能大大提高工作效率。
Conclusion Radiation injuries may effectively decreased with reducing X-ray tube voltage and exposure level under the precondition of X-ray image quality to be guaranteed.
结论在保证X线图像质量前提下，降低X射线管电压和曝光量，可以有效地减少放射性损害。
Results Optimal tube voltage and milliampere parameters of the full-length leg projection was acquired in terms of the distribution of spatial resolution under different parameters of exposure.
结果根据不同摄影参数下的空间分辨率分布情况，获取优化的CR下肢全长摄影的管电压和毫安量参数。
Caused high dose is mainly due to fluorescence exposure time, film number and the use of lower tube voltage of DSA.
引起高剂量的原因主要是荧光照射时间、拍片数量和DSA中较低管电压。
Caused high dose is mainly due to fluorescence exposure time, film number and the use of lower tube voltage of DSA.
引起高剂量的原因主要是荧光照射时间、拍片数量和DSA中较低管电压。
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