界沟

结果表明：SAN主要位于右心房界沟上半部后方的心房壁内，几乎占据心房壁厚度的全部，介于心内、外膜之间。

The results show that the sinoatrial node is located in the right atrial wall , posterior to the upper half of terminal sulcus , and occupies all the thickness of the wall between epicardium and endocardium .

以逆时针型绕上腔静脉口时多数在界沟附近有一下行袢，此袢在房间后沟内仅见2例，与McAlpine的观察结果不同。

During their course around the orifice of the superior vena cava , a descending loop is present in the posterior interatrial sulcus , only in two cases which is different from McAlpine 's observation .

辽河海陆过渡带二界沟地区具有较雄厚的油气资源基础和巨大的勘探潜力。

Er Jie Gou Area in the Sea-land Transition Zone of Liaohe has very rich hydrocarbon resources base and great exploration potential .

严禁攀越机场围墙、界沟、铁丝网等设施。

It is strictly forbidden to climb over such installations round the airport as the enclosing walls , boundary ditches , and barbed wire entanglements .

河北兴隆地区中元古界串岭沟组沉积环境与相模式

Sedimentary environment and facies model of the Mesoproterozoic Chuanlinggou Formation in the Xinglong area , Hebei

如有人自认为体力不错，也可以不花这56元钱，还有二条路可以直接登上袁家界&砂刀沟和乱窜坡。

Anyone who thinks a good physical strength , you can not spend the56 dollars , there are two paths to direct to board Yuanjiajie & knife groove and rampant sand slope .