It is important not to use conventional chucks for hammer drilling.重要的是用冲击式电机钻孔时别使用传统卡盘.These electro - permanent magnetic chucks are also available in long pole design.这些电永磁吸盘也可以利用长极块设计.The chucks are new ones for surfa...
Jon faked nonchalance.乔恩装作若无其事的样子。He faked his own death last year to collect on a $1 million insurance policy.去年,他诈死以骗取100万美元的保险金。Maturity and emotional sophistication can't be faked.成熟和情感上的老道是装不出来的。...