石油和天然气钻井工人作为钻机机组中间成员，操作钻探和服务钻机机械。石油和天然气以及服务运营商驱动卡车和操作专业化的液压泵系统，将水泥放置到油井或用化学药品，沙子混合物或气体处理油井，从而刺激生产。本单元组的工人受雇于钻井和油井的服务承办商和石油生产公司。

Oil and gas well drilling workers operate drilling and service rig machinery as intermediate members of the rig crew. Oil and gas well services operators drive trucks and operate specialized hydraulic pumping systems to place cement in wells or to treat wells with chemicals, sand mixtures or gases to stimulate production. Workers in this unit group are employed by drilling and well service contractors and by petroleum producing companies.

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地下矿山服务和支持人员进行一系列的如下相关操作，输送系统，溜槽和矿石开采及地下结构，通道和道路的建设和支撑，以及材料和物资的供应，以支持地下开采。他们受雇于煤炭，金属和非金属矿山。

Underground mine service and support workers perform a range of duties related to the operation of orepasses, chutes and conveyor systems, the construction and support of underground structures, passages and roadways, and the supply of materials and supplies to support underground mining. They are employed by coal, metal and non-metallic mineral mines.

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该组的工人安装更换汽车机械零件，如消声器，排气管，减震器，弹簧和散热器，并进行日常维护，如更换机油，润滑和轮胎，以及汽车，卡车和重型设备的维修服务。他们受雇于汽车和卡车服务和维修店，工业场所的服务部门和建筑，采矿和伐木公司。

Workers in this group install replacement automotive mechanical parts such as mufflers, exhaust pipes, shock absorbers, springs and radiators and perform routine maintenance service such as oil changes, lubrication and tire repairs on automobiles, trucks and heavy equipment. They are employed by automobile and truck service and repair shops, service departments of industrial establishments and construction, mining and logging companies.

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航空运输坡道服务员操作坡道服务车辆和设备，在机场处理货物，行李并执行其他地面支持工作。他们受雇于航空公司和航空服务公司和联邦政府。

Air transport ramp attendants operate ramp-servicing vehicles and equipment, handle cargo and baggage and perform other ground support duties at airports. They are employed by airline and air services companies and the federal government.

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此单元组包括工人管理沿运河系统的闸门，桥梁和类似设备的工人，以及管理线览渡轮和渡轮码头的工人。本组还包括船舶运营商，和业主运营商，其使用小汽艇或船只运输旅客或货物。该组中的工人受雇于联邦政府，电缆渡轮公司，轮渡码头，船舶公司和运河，港口或港口当局。小船业主运营商属于自雇人士。

This unit group includes workers who operate lock gates, bridges and similar equipment along canal systems and workers who operate cable ferries and ferry terminals. This group also includes boat operators, and owner-operators, who operate small motorboats or watercraft to transport passengers or freight. Workers in this group are employed by the federal government, cable ferry companies, ferry terminals, marine companies and canal, port or harbour authorities. Owner-operators of small boats are self-employed.

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本单元组工人站岗瞭望，操作和维护甲板设备，执行其他的甲板和桥梁职责，协助船舶轮机员操作，维护和修理船舶或者自航船的发动机，机械及辅助设备。他们受雇于海洋运输公司和联邦政府部门。

Workers in this unit group stand watch, operate and maintain deck equipment, perform other deck and bridge duties, assist ship engineer officers to operate, maintain and repair engines, machinery and auxiliary equipment aboard ships or self-propelled vessels. They are employed by marine transportation companies and federal government departments.

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铁路站场工人管理站场交通，连接和脱开列车，并执行相关站场活动。铁路养路工人操作机器和设备，铺设，维护和修理铁轨。他们受雇于铁路运输公司。

Railway yard workers regulate yard traffic, couple and uncouple trains and perform related yard activities. Railway track maintenance workers operate machines and equipment to lay, maintain and repair railway tracks. They are employed by railway transport companies.

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此单元组包括以下工人，其操作车辆和设备维护街道，公路和下水道系统，并操作卡车收集垃圾和可回收材料。本组还包括清理靠近电源线的植被的工人，检查公用电线杆状况的工人，定位地下线路和管道的工人。他们受雇于市级，省级和联邦公共工程部门，与政府公共工程部门签订合同的私人承包商，以及参与收集垃圾和可回收材料的私营公司。

This unit group includes workers who operate vehicles and equipment to maintain streets, highways and sewer systems and operate trucks to collect garbage and recyclable materials. This group also includes workers who clear vegetation close to power lines, workers who inspect the condition of utility poles and workers who locate underground utility lines and pipes. They are employed by municipal, provincial and federal public works departments, private contractors under contract with government public works departments and private companies involved in the collection of refuse and recyclable materials.

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重型设备操作员操作重型设备，用于建设和维护道路，桥梁，机场，天然气和石油管道，隧道，建筑物及其他构筑物;地表采矿和采石活动，以及材料处理工作。他们受雇于建筑公司，重型设备的承包商，公共工程部门和管道，集材，货物装卸及其他公司。

Heavy equipment operators operate heavy equipment used in the construction and maintenance of roads, bridges, airports, gas and oil pipelines, tunnels, buildings and other structures; in surface mining and quarrying activities; and in material handling work. They are employed by construction companies, heavy equipment contractors, public works departments and pipeline, logging, cargo-handling and other companies.

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配送和快递服务司机驾驶汽车，面包车和轻型卡车提取和运输各种产品。他们受雇于乳制品，药店，报刊发行，外卖部门，干洗店，移动食堂，快递和信使服务公司和许多其他机构，或者他们可能成为自雇人士。

Delivery and courier service drivers drive automobiles, vans and light trucks to pick up and deliver various products. They are employed by dairies, drug stores, newspaper distributors, take-out food establishments, dry cleaners, mobile caterers, courier and messenger service companies and many other establishments, or they may be self-employed.

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