To investigate the effect of environmental magnetic field upon crewman's physiological indexes during synchronous mine sweeping. 探讨了扫雷艇同步扫雷时环境磁场对艇员某些生理检查指标的作用.
In 1966, Pastor Albertz took over from him as governing mayor.1966年，帕斯特·艾伯茨接替他担任主管市长。laws governing the sale of alcoholic beverages控制酒类销售的法规regulations governing the sale of alcoholic beverages含酒精饮料的销售管理条例...
由四英里长的城墙围着的设防城镇a fortress town enclosed by four miles of ramparts对来自空中的攻击是无法设防的.There can be no real defence against attacks from the air.他们不能让这座城市不设防.They could not leave the city unguarded....