这不产生额外的费用， 签证申请费保持不变。
There is no additional fee and the visa application fee remains the same.
经典的经济订购批量（EOQ）问题有两个基本假设：时域无限和模型的费用参数不变。
Two basic assumptions of the classical economic order quantity (EOQ) model are the model has infinite horizon and the costs are static.
每个人都需要面签、需要留指纹的要求和签证费用不变。
Individual in person interviews, fingerprints, and visa fee payments are still required.
应用推荐