英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
portholes查看　portholes　在百度字典中的解释百度英翻中〔查看〕
portholes查看　portholes　在Google字典中的解释Google英翻中〔查看〕
portholes查看　portholes　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Porthole - Wikipedia
    Portholes on submarines are generally made of acrylic plastic In the case of deep diving submarines, the portholes can be several inches thick The edge of the acrylic is usually conically tapered such that the external pressure forces the acrylic window against the seat
  • What is a Porthole on a Boat? (Types, Functions and More)
    Also known as side scuttles, portholes are small, circular windows on the sides of a vessel’s hull You can’t get more generic than that However, once we dive a little deeper, we inevitably uncover some interesting facts about portholes
  • Ship Portholes 101: The Complete History - Ellies Travel Tips
    From wooden ships to modern vessels, portholes have been silent witnesses to the evolution of seafaring Join us as we navigate through their intriguing past, uncovering stories and transformations that shaped their existence Why are they called portholes?
  • PORTHOLE Definition Meaning - Merriam-Webster
    The meaning of PORTHOLE is an opening (such as a window) with a cover or closure especially in the side of a ship or aircraft
  • What Is a Cruise Ship Porthole? - Cruise Critic
    An iconic feature in ship design, portholes have been in existence since the earliest maritime days, when ship's crew and passengers could be stuck below deck for weeks at a time
  • What Is A Porthole On A Cruise Ship? - travelwiththegreens. com
    A porthole is a circular window found on the exterior walls of a ship or boat, typically made of brass or stainless steel frames and sealed glass windows They allow light and fresh air to enter the interior lower decks of a ship, serving as a safety feature on cruise ships
  • What is the origin of the term “portholes” for the windows on ships?
    Portholes became a common feature on all types of ships in the 19th and 20th centuries, from cargo vessels to cruise ships to warships They were used not only for ventilation and light but also for observation and defense
  • Why Do Boats Have Round Windows (Portholes)? - Pontooners
    Have you ever stopped to ponder, why do boats have round windows? Read on to learn about the history behind portholes and the benefits





中文字典-英文字典  2005-2009