列宁格勒是他在异地安家的第三个外国城市。Leningrad was the third alien city to offer him a surrogate home.城市已被猛烈的炮火夷为平地。The city has been flattened by heavy artillery bombardments.结果这座城市有点儿令人失望。The city proved to be something of a disappoint...
电瓷材料的静疲劳和动疲劳存在相似的关系.Similar correlation is essential also for static and dynamic fatigue of electrical porcelain material.用途: 用于电瓷产品 ( 棒形 、 套管 ) 的切割或倒角.Usage: it is suitable for procelain products ( bar, sleeve ) to cutt...