其他:

“OFL”是“Ontario Federation of Labour”的缩写，意思是

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“OGCA”是“Ontario General Contractors Association”

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“OHSA”是“Occupational Health & Safety Act”的缩写，

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“OITAB”是“Ontario Industry Training & Adjustment

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“OJSPC”是“Ontario Joint Standard Practice

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“OLRB”是“Ontario Labour Relations Board”的缩写，意

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“OPIA”是“Ontario Plumbing Inspectors Association”

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“OPTC”是“Ontario Pipe Trades Council”的缩写，意思是

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“OSM&AHG”是“Ontario Sheet Metal & Air Handling

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“OTAB”是“Ontario Training Adjustment Board”的缩写，

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