copy and paste this google map to your website or blog!
Press copy button and paste into your blog or website.
(Please switch to 'HTML' mode when posting into your blog. Examples: WordPress Example, Blogger Example)
Input Form:Deal with this potential dealer,buyer,seller,supplier,manufacturer,exporter,importer
(Any information to deal,buy, sell, quote for products or service)
Abacus ABACUS (Atomic-orbital Based Ab-initio Computation at USTC) is an open-source software package designed for large-scale electronic structure simulations from first principles
ABACUS中文 (简体)翻译：剑桥词典 - Cambridge Dictionary Machines for calculating fixed numerical tasks such as the abacus have existed since antiquity, aiding in computations such as multiplication and division
Abacus | Definition, History, Origin, Facts | Britannica Abacus, calculating device, probably of Babylonian origin, that was long important in commerce It is the ancestor of the modern calculating machine and computer The abacus was in universal use in Europe in the Middle Ages, as well as in the Arab world and in Asia
Amazon. com: Abacus Abacus，Soroban, Abacus for Adults, Professional 13 Column Abacus for Math with Reset Button，Digits and Educational Learning Tool （9 8 inch） Add to cart
Abacus Explained — Everything You Need To Know - History Tools The abacus is one of the oldest calculating devices, used by ancient civilizations globally This comprehensive guide will explain what an abacus is, how it works, its fascinating history, why it remains popular today, and how learning abacus calculation can improve your math skills!
Abacus - New World Encyclopedia An abacus (plurals abacuses or abaci), also called a counting frame, is a calculating tool for performing arithmetical processes, often constructed as a wooden frame with beads sliding on wires
The Abacus and the Numeral Frame - National Museum of American History The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines The instrument may have originated in the Middle East before the time of Christ
What is Abacus and How Does It Work? A Complete Guide An abacus is a manual calculating device made of a wooden or plastic frame with rods and beads Each bead represents a number, and moving them helps perform addition, subtraction, multiplication, and division quickly