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grapnel    
n. 小锚,抓钩

小锚,抓钩

grapnel
n 1: a tool consisting of several hooks for grasping and
holding; often thrown with a rope [synonym: {grapnel},
{grapple}, {grappler}, {grappling hook}, {grappling iron}]
2: a light anchor for small boats [synonym: {grapnel}, {grapnel
anchor}]


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英文字典中文字典相关资料:


  • Where and When Did the Symbols + and – Originate?
    The ancient Greeks expressed addition mostly by juxtaposition, but sporadically used the slash symbol " " for addition and a semi-elliptical curve for subtraction In the famous Egyptian Ahmes papyrus, a pair of legs walking forward marked addition, and walking away subtraction
  • Addition - Wikipedia
    Addition 3 + 2 = 5 with apples, a popular choice in textbooks [1] Addition (usually signified by the plus symbol, +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication, and division The addition of two whole numbers results in the total or sum of those values combined
  • Glossary of mathematical symbols - Wikipedia
    Glossary of mathematical symbols A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula or a mathematical expression
  • List of mathematical symbols - Simple English Wikipedia, the free . . .
    This page provides a comprehensive list of mathematical symbols with their meanings and usage in mathematics
  • The Surprisingly Short History Of The Plus Sign - Fast Company
    06-23-2014 DESIGN The Surprisingly Short History Of The Plus Sign Before the 16th century, most math equations were written as metered verse Thank god for graphic-design-inclined mathematicians
  • Pluszeichen – Wikipedia
    Das Kreuz ist als Symbol seit der Steinzeit bekannt (etwa in Steinritzungen), aber meist nicht deutbar Als Rechenzeichen ist es jüngeren Datums Noch im 15 Jahrhundert war es üblich, die Wörter „plus“ und „minus“ auszuschreiben Das erste Pluszeichen im Druck erschien im Werk Mercantile Arithmetic oder Behende und hüpsche Rechenung auff allen Kauffmanschafft von Johannes Widmann
  • Origin Story: ‘+’ and ‘-’ the basic signs of arithmetic - Medium
    The plus and minus signs (+ and −) are mathematical symbols used to represent operations of addition and subtraction as well as the notions of the positive and negative
  • Fun with Numbers: Where do the + Plus and - Jagran Josh
    For addition we normally use the plus sign ("+") and for subtraction we use the minus sign ("+") and subtraction ("–") But have you ever thought that from where do these symbols came from
  • Sign (mathematics) - Simple English Wikipedia, the free encyclopedia
    Sign (mathematics) The plus and minus symbols are used to show the sign of a number Plus means positive and minus means negative In mathematics, the word sign refers to the property of being positive or negative Every real number that is non-zero is either positive or negative, and therefore has a sign Zero itself is without a sign, or





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