机械钳工打磨，装配，或者打造重型工业机械和运输设备，包括飞机发动机。他们受雇于工业机械和运输设备制造业。
Machine fitters fit, assemble and otherwise build heavy industrial machinery and transportation equipment, including aircraft engines. They are employed in industrial machinery and transportation equipment manufacturing industries.
飞机机械师维护，修理，大修，修改和测试飞机的结构，机械和液压系统。飞机检查员检查飞机和飞机系统制造，改装，维修，维修或大修情况。飞机机械师和飞机检查员受雇于飞机制造，维护，修理和大修机构，航空公司和其他飞机运营商。
Aircraft mechanics maintain, repair, overhaul, modify and test aircraft structural, mechanical and hydraulic systems. Aircraft inspectors inspect aircraft and aircraft systems following manufacture, modification, maintenance, repair or overhaul. Aircraft mechanics and aircraft inspectors are employed by aircraft manufacturing, maintenance, repair and overhaul establishments, and by airlines and other aircraft operators
铁路车辆检修工/男/女检查，排除故障，维护和修理铁路货运，客运和城市轨道交通车的结构及机械元件。他们受雇于铁路运输公司和城市公交系统。
Railway carmen/women inspect, troubleshoot, maintain and repair structural and mechanical components of railway freight, passenger and urban transit rail cars. They are employed by railway transport companies and urban transit systems.
制冷与空调技工安装工，维护，修理和大修户式中央空调系统，商业和工业制冷和空调系统，以及供暖，通风和冷却三联供系统。他们受雇于制冷与空调安装工承包商，各种工业环境，食品批发商，工程公司和零售及服务机构。运输制冷技工也包含在本单元组。
Refrigeration and air conditioning mechanics install, maintain, repair and overhaul residential central air conditioning systems, commercial and industrial refrigeration and air conditioning systems and combined heating, ventilation and cooling systems. They are employed by refrigeration and air conditioning installation contractors, various industrial settings, food wholesalers, engineering firms and retail and servicing establishments. Transport refrigeration mechanics are included in this unit group.
重型设备技工维修，故障排除，调整，检修和维护用于建筑，交通，林业，采矿，石油和天然气，材料处理，园林绿化，清理土地，农业和类似活动的可移动重型设备。他们受雇于拥有及经营重型设备的公司，重型设备经销商，出租及服务机构，以及铁路运输企业和城市公交系统。
Heavy-duty equipment mechanics repair, troubleshoot, adjust, overhaul and maintain mobile heavy-duty equipment used in construction, transportation, forestry, mining, oil and gas, material handling, landscaping, land clearing, farming and similar activities. They are employed by companies which own and operate heavy equipment, and by heavy equipment dealers, rental and service establishments, and railway transport companies and urban transit systems.
建筑维修工和工业机械师安装，维护，故障排除，检修和修复固定的工业机械和机械设备。本单元组包括工业纺织机械师和维修工。建筑维修工受雇于维修工承包商。工业机械师受雇于工业机械制造工厂，公用事业及其他工业场所。
Construction millwrights and industrial mechanics install, maintain, troubleshoot, overhaul and repair stationary industrial machinery and mechanical equipment. This unit group includes industrial textile machinery mechanics and repairers. Construction millwrights are employed by millwrighting contractors. Industrial mechanics are employed in manufacturing plants, utilities and other industrial establishments.
本单元组主管监督和协调卡车司机，巴士司机，送货司机，地铁及其他交通营办商，司机，出租车和豪华轿车司机的活动。此单元组还包括公交调度，其负责统筹运输系统的公交司机和操作和监控音轨切换控制面板的地铁交通管制人员的活动。他们受雇于汽车运输和地面运输公司和城市公交系统。
Supervisors in this unit group supervise and co-ordinate activities of truck drivers, bus drivers, delivery drivers, subway and other transit operators, chauffeurs and taxi and limousine drivers. This unit group also includes bus dispatchers who co-ordinate the activities of transit system bus drivers and subway traffic controllers who operate and monitor signal and track switch control panels. They are employed by motor transportation and ground transit companies and by urban transit systems.
本单元组主管监督和协调铁路和站场机车工程师，铁路站场工人和铁路工人的活动。他们受雇于铁路运输公司。
Supervisors in this unit group supervise and co-ordinate the activities of railway and yard locomotive engineers, railway yard workers and railway labourers. They are employed by railway transport companies.
本单元组主管监督和协调工人以下的活动，生产相机工作和印刷板和气缸，工艺膜，纸张，金属和其他材料上打印的文字和插图，并绑定活动，完成印刷产品。他们受雇于公司，专门在商业印刷或它的组件之一，如绑定还是色彩还原，结合印刷和出版公司，如报纸和杂志，并在公共和私营部门的各种机构在内部印刷部门。
本单元组主管监督和协调工人以下的活动，生产相机工作和印刷板和气缸，制版胶片，在纸张，金属和其他材料上打印文字和插图，并装订和完成印刷产品。他们受雇于公司，专门从事商业印刷或它的组件之一，如装订或色彩还原，以及印刷和出版公司，如报纸和杂志，以及拥有内部印刷部门的公共和私营部门的各种机构。
Supervisors in this unit group supervise and co-ordinate the activities of workers who produce camera work and printing plates and cylinders, process film, print text and illustrations on paper, metal and other material, and bind and finish printed products. They are employed by companies that specialize in commercial printing or one of its components, such as binding or colour reproduction, in combined printing and publishing companies, such as newspapers and magazines, and in various establishments in both the public and private sectors that have in-house printing departments.
本单元组包括拥有和经营自己生意的挖掘，分级，铺路，钻井和爆破承建商。还包括监督和协调下列单元组的工人活动的主管：起重机操作员，钻孔者，爆破工 – 表层采矿，采石和建筑，水文水井钻探工，码头工人，物料装卸机，重型设备操作员（除了起重机），公共工程维护设备操作人员及有关人员，铁路站场和养路工人，公共工程和维护劳动者。他们受雇于广泛的场所，工作场所在上述单元组已经描述。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business. This unit group also includes supervisors who supervise and co-ordinate the activities of workers classified in the following unit groups: Crane Operators [7371](7371), Drillers and Blasters – Surface Mining, Quarrying and Construction [7372](7372), Water Well Drillers [7373](7373), Longshore Workers [7451](7451), Material Handlers [7452](7452), Heavy Equipment Operators (Except Crane) [7521](7521), Public Works Maintenance Equipment Operators and Related Workers [7522](7522), Railway Yard and Track Maintenance Workers (7531), and Public Works and Maintenance Labourers [7621](7621). They are employed in a wide range of establishments; places of employment are indicated in the above unit group descriptions.