embarkation       
noun [ C or U ] uk/ˌem.bɑːˈkeɪ.ʃən/ us/ˌem.bɑːrˈkeɪ.ʃən/
 上船
the act of going onto a ship
  You'll be asked for those documents on embarkation. 登船时会要求你出示这些文件。 
 I returned to my original point of embarkation. 我回到了原来上船的地方。 
 See: embark
 - More examples
 - Rapid embarkation and unloading is achieved via metal steps.
 - The fleet is reviewing procedures involving embarkation of civilian guests.
 - You have to fill in an embarkation card and a landing card.