Frontal surface

Oil and gas reservoirs in Biyang depression distribute in circularity in the pressure equilibrium zone on the frontal surface between sedimentary water and infiltration water .

泌阳凹陷的油气田呈环带状分布于沉积水与渗入水锋面位置的压力平衡带上。

Tangential frost-heave force is perpendicular to frozen frontal surface and is parallel to side surface of foundation which is a pulling force make foundation move as the frost heave deformation of soil .

其中切向冻胀力垂直于冻结锋面，平行作用于基础垂向侧表面，且通过影响基础与冻土间的冻结强度，使基础随着土体的冻胀变形而产生向上位移的拔起力。

The frontal surface of the disturbance is almost perpendicular to geomagnetic field lines . It means the disturbance propagates along magnetic lines . The propagation velocity for the disturbance is between 150 and 600 m / s.

扰动峰面几乎与地磁力线垂直，即扰动沿磁力线方向发展，其传播速度大约在150&600m/s范围。

When Tamias striatus were in deep hibernation , voltage of ECG was higher . The P wave wasn 't up the T wave , and ECG had TP segment . The QRS electric axis of frontal surface was60 ° .

而当花栗鼠深冬眠时，心电图各波电压较高，P波不与T波重叠有TP段，额面QRS电轴方向约为60°。

Clinical characteristics and therapy of frontal medial surface injury

额叶内侧面损伤的临床特点及救治

Objective To summarize the clinical characteristics and therapeutic experience of 17 patients with frontal medial surface injury .

目的总结17例额叶内侧面损伤的临床特点及救治经验。