急性胃扩张是一种罕有的并发症.Acute dilatation of the stomach is a rare complication.狗的胃扩张有二种类型,只有极不相同的临床症状.Gastric dilatation in dogs occurs in 2 general forms with vastly different clinical pictures.胃扩张.The stomach is distended....
the first ascent of Mount Everest首次攀登珠穆朗玛峰The top of Mount Everest is the most inaccessible place in the world.珠穆朗玛峰是世界上最难到达的地方.Climbing Mt. Everest is anything but a pleasure trip.登圣母峰绝不是一次轻松的旅途....
Distributive characters of hypervelocity fragments impacting double - level target were researched.研究了超高速破片碰撞 双层 靶形成碎片云的分布特点.The meteorites struck the earth with hypervelocity impacts.流星以超高速撞击力冲击地球.Studies the hyperveloc...