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
brontops查看　brontops　在百度字典中的解释百度英翻中〔查看〕
brontops查看　brontops　在Google字典中的解释Google英翻中〔查看〕
brontops查看　brontops　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:


  • Chert - Wikipedia
    Chert ( tʃ ɜːr t ) is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, [1] the mineral form of silicon dioxide (SiO 2) [2] Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood [3]
  • Chert Rock | Types, Properties, Composition, Formation, Uses
    Chert is a fine-grained sedimentary rock composed of quartz (SiO2) that is microcrystalline or cryptocrystalline quartz It is usually organic rock but also occur inorganically as a chemical precipitate or a diagenetic replacement
  • CHERT Definition Meaning - Merriam-Webster
    The meaning of CHERT is a rock resembling flint and consisting essentially of a large amount of fibrous chalcedony with smaller amounts of cryptocrystalline quartz and amorphous silica
  • Chert: Sedimentary Rock - Pictures, Definition, Formation
    Chert is a sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO 2) It occurs as nodules, concretionary masses, and as layered deposits Chert breaks with a conchoidal fracture, often producing very sharp edges
  • Chert: Identification, Pictures Info for Rockhounds
    Chert is a biochemical sedimentary rock made from microcrystalline quartz It is very hard – registering a 7 on the Mohs hardness scale, and displays conchoidal fracturing Chert can almost any color, but is usually gray, brown, red, or green It has many subvarieties including flint, jasper, agate, and onyx
  • Chert: Formation, Types, Properties, Uses – Geology In
    Chert is a hard, fine-grained sedimentary rock composed almost entirely of silica (SiO₂) in the form of microcrystalline or cryptocrystalline quartz Known for its durability, waxy or dull luster, and conchoidal fracture (smooth, curved breaks similar to glass), chert is often formed from the accumulation of siliceous skeletons of
  • All About the Rock Called Chert - ThoughtCo
    Chert is a sedimentary rock made of silica, mainly from the skeletons of tiny plankton This rock forms through slow transformations beginning with siliceous ooze going through lithification and diagenesis Chert is a tough rock that isn't transparent, often showing colors due to clay or organic matter





中文字典-英文字典  2005-2009