The clip is attached to the runners clothing at the beginning of the exercise regime . if the runner moves out of the normal position , the clip will cause the machine to shut off immediately 安全插鞘的一端插在电子表上，另一端夹在运动者的衣服上，人体离开跑步机正常位置时，跑步机立即停止,安全无虞
Abnormal position of the heart within the thoracic cavity may potentially cause cardiac single - photon emission computed tomography ( spect ) perfusion artifacts , and only few such cases have been reported 摘要胸腔内心脏位于不正常位置可能导致心脏单光子射出计算机断层造影伪像，且这种病例仅有少数曾被报告过。
The css classification properties allow you to control how to display an element , set where an image will appear in another element , position an element relative to its normal position , position an element using an absolute value , and how to control the visibility of an element Css类别属性允许你控制元素的显示效果，设置图象将在显示在另一元素的哪个位置，相对于元素正常位置的定位，以绝对值来定位一元素，并控制元素的可见性。
