结果筛选船员国籍、船舶经营者、来自疾病流行区、月份、船龄等16个危险因素，建立了结构方程模型。
Results 16 risk factors such as crews' nationalities, ship operator, epidemic prevalence region and month, ship age etc were selected to establish structural equation model.
国际船舶代理经营者应当按照国家有关规定代扣代缴其所代理的外国国际船舶运输经营者的税款。
International ship agency operators shall withhold and remit the taxes of the foreign international shipping operators for whom they act as an agent according to the relevant provisions of the State.
协议运价，是指国际船舶运输经营者与货主、无船承运业务经营者约定的运价。
The international shipping operator and the non-vessel shipping operator shall carry out the recorded freight rate that has taken effect.
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