The old tried-and-true security drill is still the best, security experts say.
安全专家说，过去行之有效的安全演习仍是最好的办法。
The product design favors ease of use and easy integration into the development tools and process over advanced security drill-down functionality.
这个产品设计偏好使用简便以及轻松地整合到开发工具和过程中，胜过高级安全性专研功能的开发。
Compares with drill emission hole, the use of cutting method to against coal and gas outburst prominent have characteristics of security, time and labour-saving, and easy to operate.
与排放钻孔相比，使用掏槽法防突具有省时、省力、容易操作以及安全性好等特点。
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