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

请选择你想看的字典辞典：

单词	字典	翻译
estimations	查看　estimations　在百度字典中的解释	百度英翻中〔查看〕
estimations	查看　estimations　在Google字典中的解释	Google英翻中〔查看〕
estimations	查看　estimations　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:

<style type="text/css">#word104_1 br {display:none;}</style>
<form id="word104_1" method="post" action="http://www.51zidian.com/index.php" target="_blank">
<div style="width: 140px;border:1px solid #000;background-color:#ffffff;padding: 0px 0px;margin: 0px 0px;align:center;text-align:center;overflow:hidden;"><div id="xcolor1_1" style="font-size:12px;color:#183a00;line-height:16px;font-family: arial; font-weight:bold;background:#94abf0;padding: 3px 1px;text-align:center;"><a href="http://www.51zidian.com/" alt="英文字典中文字典" title="英文字典中文字典" id="word_name104_1" style="color:#000000;font-size:14px;text-decoration:none;line-height:16px;font-family: arial;" >英文字典中文字典</a></div><table width=100% style='align:center;text-align:left;font-size:12px;background-color:#ffffff;color:#333333;'>
<tr><td style="text-align:center;border:0"><input type=hidden name="word104_hi" value="1">输入中英文单字</td></tr><tr><td style="text-align:center;border:0"><input type="text" name="word104_input" value="" size=10 style="background-color:#ffffff;color:#000;text-decoration:none;font-family: arial;rial;border:1px solid #999;padding:1px!important;"></td></tr><tr style='line-height: 26px;'><td style="text-align:center;border:0"><input type=submit style="background-color:#ccc;color:#000;border:0 none;cursor:pointer;" value="查询字典"></td></tr></table></div>
</form>

英文字典中文字典相关资料:

Calcium - Wikipedia
Calcium is a chemical element; it has symbol Ca and atomic number 20 As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air Its physical and chemical properties are most similar to its heavier homologues strontium and barium
Calcium | Definition, Properties, Compounds | Britannica
calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table It is the most abundant metallic element in the human body and the fifth most abundant element in Earth ’s crust
Calcium Facts – Atomic Number 20 and Element Symbol Ca
Calcium is the 20 th element of the periodic table These calcium facts contain chemical and physical data along with general information and history Basic Calcium Facts Name: Calcium Atomic Number: 20 Element Symbol: Ca Group: 2 Period: 4 Block: s Element Family: Alkaline Earth Atomic Mass: 40 078 (4) Discovery: Sir Humphry Davy in 1808
Calcium - Element information, properties and uses | Periodic . . .
Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys Calcium compounds are widely used
Calcium Element | History, Uses, Facts, Physical Chemical . . .
It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminum The atomic number of calcium is 20, and atomic weight is 40 078 The density of calcium is 1 55 grams per cubic centimeter Its melting point is 842 °C and boiling point is 1494 °C
Calcium (Ca) - Periodic Table
Calcium is the 20th element in the periodic table and has a symbol of Ca and atomic number of 20 It has an atomic weight of 40 078 and a mass number of 40 Calcium has twenty protons and twenty neutrons in its nucleus, and twenty electrons in four shells
Calcium Facts, Symbol, Discovery, Properties, Uses
Calcium (pronunciation KAL-see-em [2]), represented by the chemical symbol or formula Ca [1], is a soft element belonging to the family of alkali earth metals [3] Naturally occurring Ca is a mixture of 6 isotopes with mass numbers 40, 42, 43, 44, 46 and 48 [1, 3]

中文字典-英文字典 2005-2009