由工厂制定的本厂职工必须遵守的规则factory regulations(plural)

• 修订厂规、店规、校规、居民守则、乡规民约等

  revise factory regulations, shop regulations, school regulations, regulations for residents and village rules and conventions

• 厂规的制定是为了企业更好地管理和发展。

  Factory regulations are made to improve the management and development of businesses.