As a special ticket agent, the travel agency usually books tickets in advance from the airline in order to satisfy the passenger demand in the midseason.
作为一种特殊的机票代理，为了应对旅游旺季的旅客需求，旅行社往往会提前较长时间从航空公司预订机票。
In this paper, the way to use antistatic agent and the act mechanism of the antistatic agent were discussed. And the research advance for worldwide of antistatic agent was introduced.
本文阐述了抗静电剂的作用机理与使用方法，并介绍了抗静电剂的国内外研究进展。
Advance on the curing agent of UF resin was reviewed, included properties of UF resin, curing theory, types and selection for curing agent of UF resin.
叙述了UF树脂固化剂研究进展，包括UF树脂性质、UF树脂固化理论以及UF树脂固化剂种类和合理的选择固化剂。
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