The resonance scattering spectra of colibacillus have been studied.研究了大肠杆菌的共振散射光谱.The relative molecular mass of chitosan fractionated by wave was measured by the light scattering method.采用粘度法分析了不同溶剂对壳聚糖粘度的影响,用光散射法测定了超声波...
On beaches, keep your camera safe from sand by enveloping it inside a plastic bag.在沙滩上时，将相机用塑料袋包裹起来以防止进沙子。She turned drowsily on her side, a slow creeping blackness enveloping her mind.她半睡半醒地翻了个身, 一片缓缓蠕动的黑暗渐渐将她的心包围起来.On ...
城市灰尘是城市环境学研究的对象之一.Urban dust constitutes an important problem in urban environmental science.这一计算方法不具有环境学和生态学方面的意义.The budgetary method doesn't have the meaning of environmental science and ecology.作为一名曾经的商人, 他现在已经成...