结果：头胸导联所记录到的Q波数及Q波幅度均显著低于常规导联心电图。
Results: Q wave amplitude and Q wave numbers recorded in Head-Chest leads were lower than those recorded by Routine lead ECG.
目的观察在窄qrs波心动过速鉴别诊断时，头胸导联心电图是否优于常规12导联心电图。
Objective To observe whether the head-chest leads electrocardiogram (HCECG) is better than the routine 12-leads electrocardiogram (RLECG) in different diagnosis of narrow QRS complex tachycardias.
头容正，肩容平，胸容宽，背容直。
Keep your head upright, shoulders horizontal, chest broad, back straight.
头、胸和尾为紫红色的北美洲小雀鸟。
North American finch having a raspberry-red head and breast and rump.
本固定器，结构科学合理，适用于头、颈、脊柱、胸、腰各段后路手术。
The said fixing device with scientific and reasonable construction is suitable to surgical operation for head, neck, back bone, chest and waist.
在临床上可用于治疗头、颈、胸、腰和骶部的疼痛。
Clinically, it could be employed in the treatment of some types of pain in head, neck, thorax, lumbar and sacral region.
鸭胸肉配红萝卜，白萝卜，草头，野蓝莓。
胸省缝头要熨向上面。
胸省缝头要熨向上面。
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