高手帮翻译下，下面的职务译成英语 谢谢！

航标处 党委书记 Beacon to the secretary of the party committee

航标处处长 工程师 Beacon to the Director of engineers

导航科科长 高级工程师 Senior Engineer chief of the navigation

航标处副处长 高级工程师 Beacon to the Deputy Director, Senior Engineer
不知道对了没】
你可以上这里翻译 Google的 http://translate.google.com/translate_t?langpair=zh|en

Navigation aid place party committee secretary
Navigation aid place department head engineer
Guidance branch section chief senior engineer
Navigation aid place assistant deputy office chief senior engineer