有关硫醇酯类的数据非常有限.Only a very limited amount of data is available on thiol esters.这个合成硫醇的方法,就显得更加重要.This approach to mercaptans takes on added importance.目的讨论合成盐酸吡硫醇的关键反应.Objective To discuss the key synthesis reaction of Py...
With urbanisation the antagonism between rich and poor sharpened...伴随着城市化的推进，贫富间的对立情绪也加剧了。Urbanisation decreases the likelihood of trees being felled for heating and building.城市化进程降低了因取暖和大兴土木而砍伐树木的可能性.But urbanisation is...
结论: 外伤性胃破裂多见于腹部开放性损伤,常有合并伤.Conclusion: Traumatic gastric rupture is offen caused by abdominal open injury and has associated injury.目的: 探讨门奇静脉断流术后胃破裂的原因和防治措施.Objective : To explore and analyse ther eason preventive measu...
The Sioux had always fought other tribes for territorial rights.苏人总是为领地权与其他部落作战。In the Midwest, Morningside College Sioux City, Iowa, has more than one thousand students.在中西部, 衣阿华州Sioux市的莫宁赛德学院, 拥有1, 000多名学生.Alumnus Art ...