Many mining engineering subjects are established on geologic condition of alluvium.众多矿业工程均建设于冲击地层的地质环境之中.Examples of application of the method include the results of a regional water and alluvium study.作为方法应用的实例,列举了区域河水和...
心脏的外表面是由另一层结缔组织, 即心外膜所覆盖.Over the other surface of the heart lies another layer of connective tissue, the epicardium.描记心外膜电图,计算心肌缺血程度.The epicardial electrogram was used to measure the myocardial ischemia degree.心外膜表面可见粗...
为保持土壤肥力,农民搞作物轮作.Farmers rotate their crops so that the soil will remain fertile.农作物轮作有助于防止水土流失.Crop rotation helps prevent soil erosion.他连续5年在同一块地里种植不同的作物，研究人员称之为轮作。He grew a different crop on the same field five years i...