The snow - capped mountains stood out in sharp relief against the blue sky.白雪皑皑的山峦与蓝天形成了鲜明对比.Beyond these snow - capped mountains lies Rome!越过这些雪山就是罗马!On the third day, with snow - capped mountains Songzanlinsi sunset.第三...
许多天然纤维在需氧菌的侵袭下则迅速腐坏.Many natural fibers decay rapidly when exposed to aerobic cultures.冷藏库是用来防止蛋和肉腐坏的.A cold storage is used to keep eggs and meat from spoiling.牙齿腐坏, 就是龋齿, 首先会减弱牙齿内的保护.Dental decay, also known as dental ...
These consist of a series of small ferrite cores of maximum diameter 2 mm.这些由一系列最大直径为2毫米的小铁氧体磁心组成.The citrate sol - gel synthesis method has been used to prepare zinc ferrite.采用硝酸铁、硝酸锌、柠檬酸制备前驱体,在不同加热温度与速率下制备锌铁氧体.The effe...