Airlines are reluctant to stop them because airport operators often use sales of duty-free and other items to subsidise landing charges.
航空公司不情愿阻止他们，因为机场运营管理商通常用免税产品和其它商品的销售额来抵充所收取的机场降落费。
All carriers and airport operators involved are jointly and severally responsible for the timely and complete implementation of the agreement.
所有相关承运人和机场运营方都有责任及时地、完全地履行合同。
It argues that charging policy, based on marginal cost pricing, is economically efficient, and facts show that relevant principles are more widely accepted by airport operators.
利用边际成本定价模式确定飞机所需交纳的起降费从经济学角度来说是富于效率的，并且相关的原则也为越来越多的机场所采纳。
They had no direct radio link with aircraft but used telephones to stay in touch with airline dispatchers, airway radio operators, and airport traffic controllers.
他们不与飞机建立直接的无线电联络，而是同航空公司签派员、航路电台工作人员和机场管制员保持联系。
Some countries in Asia, Latin America and Europe are screening airport passengers for symptoms, while tour operators in France and Germany have suspended trips to Mexico.
一些亚洲国家，拉丁美洲和欧洲的筛选机场旅客症状，而旅游经营者在法国和德国已暂停前往墨西哥。
We saw large tour operators, groups that were there, many of them saying that their tour guides were telling them that it just simply was not safe to leave the airport and go outside.
机场有大批的旅行团滞留，好多旅客说他们的导游告诉他们离开机场大厅去外面很不安全。
It is just a matter of time before a plane crashes in Swaziland, " said Dwayne Elderkin, operations manager of Stephen Air Charter Services, one of two regular operators flying into the airport."
斯蒂芬飞机租赁公司是在此机场有固定业务的两家公司之一，该公司业务经理德怀恩-埃德金说。
It is just a matter of time before a plane crashes in Swaziland, " said Dwayne Elderkin, operations manager of Stephen Air Charter Services, one of two regular operators flying into the airport."
斯蒂芬飞机租赁公司是在此机场有固定业务的两家公司之一，该公司业务经理德怀恩-埃德金说。
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