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：

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:


  • Seashell - Wikipedia
    A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea Most seashells are made by mollusks, such as snails, clams, and oysters to protect their soft insides [1]
  • Seashell | Definition, Types, Facts | Britannica
    seashell, hard exoskeleton of marine mollusks such as snails, bivalves, and chitons that serves to protect and support their bodies It is composed largely of calcium carbonate secreted by the mantle, a skinlike tissue in the mollusk’s body wall
  • What are the Most Common Types of Seashells? - AnimalWised
    When walking along any beach in your country, you can find countless sea shells and conches, each more beautiful than the last Here we'll give you some very common examples, and then begin discussing more exotic specimens You'll learn about the different types and see photos to help differentiate them
  • Where Do Seashells Come From? - Ocean Conservancy
    Seashells are made of calcium carbonate When you see a seashell by the seashore, you are seeing the empty shell of an animal that has died The body that used to live inside the shell, usually soft and fleshy, has died, decomposed or been eaten by a hungry ocean creature
  • A Complete Guide to Shell Identification [18 Kinds of . . .
    Easy Shell Identification: discover 18 seashell kinds, key features, tips, and fascinating facts to help collectors identify marine treasures easily
  • Sea Shell Types - Types of Seashells - Naples Sea Shells
    Check out the basic anatomy of a sea shell on our Facts About Sea Shells page There are many types of sea shells and different variations of each See classification and different types of shells you'll find within our site
  • The Ultimate Sea Shell Identification Guide - The Trippy Life
    Pictures and cool facts for 63 amazing shells, including rare shells, huge shells, and a deadly shell
  • How are seashells made? - Woods Hole Oceanographic Institution
    One of the most striking features of our beaches is seashells Their whorls, curves, and shiny iridescent insides are the remains of animals Most shells come from soft-bodied mollusks Snails, clams, oysters, and others need the hard protection of their shells This tough outer covering protects the tasty body hiding inside
  • Seashells expert guide: what are they, where do they come . . .
    Seashells have so many stories to tell us about the sea, what lives there and how everything is connected – often in unexpected ways Every day, as the tide rises and falls, new shells arrive on the beach and lie waiting for us to come along and find them
  • How are seashells formed? And why are they different colors . . .
    “A seashell is a protective outer coating secreted by the animal’s mantle, which is one of their muscles,” she said The mantle forms the soft outer wall of their body The mollusk’s mantle builds the shell from the bottom up It absorbs salt and chemicals from the water around it





中文字典-英文字典  2005-2009