Beneath his gruff exterior, he's really very kind-hearted.他外表冷漠，心地却十分善良。This is no time to be faint-hearted...现在不是怯懦的时候。...a half-hearted apology...不诚挚的道歉...a cold-hearted killer.铁石心肠的杀手The coming of spring often in...
电晕放电和刷毛状放电只是从放电点处逐个地发生.The corona or brush discharge, would transfer from point to point.在存在电晕的区域, 形成了大量正离子和负离子.In the region where the corona exists, large numbers of positive and negative ions are formed.利用直流高压电晕产生的非平衡...
近来，他写了大量有关替代医学的文章。Latterly, he has written extensively about alternative medicine.现代医学的发展advances in modern medicine生理学和解剖学是医学的基础.Physiology and anatomy are basic to medical science....