Cancellation notification must be made to Dream Cruises Reservations Office by telephone or in writing and shall be effective only upon actual receipt by Dream Cruises Reservations Office.
必须以电话或书面形式向星梦邮轮预订部提出取消航程订位，且星梦邮轮预订部实际收到该通知方为有效。
By analysing the actual room acoustic environments, this paper presents a novel algorithm for acoustic echo cancellation, it can dynamically change the length of the adaptive filter order.
通过对回声抵消的实际应用环境进行分析，提出一种新的动态改变自适应滤波器阶数的算法。
Cancellation notification must be made to Dream Cruises Reservations Office by telephone or in writing and shall be effective only upon actual receipt by Dream Cruises Reservations Office.
必须以电话或书面形式向星梦邮轮预订部提出取消航程订位，且星梦邮轮预订部收到该通知方为有效。
Cancellation notification must be made to Dream Cruises Reservations Office by telephone or in writing and shall be effective only upon actual receipt by Dream Cruises Reservations Office.
必须以电话或书面形式向星梦邮轮预订部提出取消航程订位，且星梦邮轮预订部收到该通知方为有效。
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