Explanation Similar in size to other large, bright spiral galaxies, IC 342 is a mere 7 million light-years distant in the long-necked, northern constellation Camelopardalis.
IC 342和其他大型明亮的螺旋星系的大小相当，这个在北方天穹细长的鹿豹座中的星系离我们只有7百万光年。
Methods Before spiral CT scanning, the preparation was similar to the conventional X-ray oral cholecystography.
方法螺旋CT扫描前准备类似于常规X线口服法胆囊造影。
Similarly, spiral ct scanning is accessible to most emergency departments, and provides similar (and even more extensive) information in suspected cases.
类似地，螺旋CT扫描适用于大多数急诊科室，并且对疑似患者有类似价值(甚至能提供更多信息)。
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