Torn muscles retract, and lose strength, structure, and tightness.撕裂的肌肉会收缩，丧失原来的力量、结构和紧实度。My grumble is with the structure and organisation of the material.我所不满的是素材的结构和组织。The chemical structure of this particular molecul...
Age structure is a foundational base to study the population dynamics.年龄结构是研究种群动态的重要基础.Objective To search for triterpene glycoside with new structure.目的:寻找结构新颖的三萜皂苷类化合物.The photosphere has a granular structure.光球还有颗粒结构。...
薪材日益昂贵和稀缺,既买不起又拣不到.Fuelwood is becoming too expensive to buy and too scarce to gather.薪材短缺是毁林后果的最明显和最引人注目的实例.Firewood scarity offers the most visible and dramatic example of deforestation's effects....