For example, single travelers in one AARP group have moved from exchanging tips to planning trips together.

Growth of ABAC Structured Film by Computer Simulation

计算机模拟二元ABAC结构薄膜生长

ABAC APEC Business Advisory Council

APEC工商咨询理事会

Analysis on beating characteristics and paper properties for abaca pulp

马尼拉麻浆打浆特性和成纸性能分析

Liber Abaci emphasizes summed-up algorithm, but does not pay attention to the form of propositions derived, and it mainly reflects the tendency of practical algorithms, such as principal method from India and the algebraic knowledge from the Arab.

全书讲究算法概括，不注重命题的形式推导，体现出实用化算法化倾向。例如：来自印度的三率法等算术技巧和来自阿拉伯的代数学知识。

Nowadays, abaci are often constructed as a wooden frame with beads sliding on wires, but originally they were beads or stones moved in grooves in sand or on tablets of wood, stone, or metal.

如今，算盘往往建造在电线与滑动珠子木框架，但是最初他们是珠子或石头，在沙槽移动或木材，石头或金属片。

Disposing welding section steel cross bridging in the slab-column system is a good means to avoid disposing abaci and elevating shear resistance.

合理设置型钢剪力架是避免设置柱帽和板托，同时有效提高板柱节点抗冲切承载力的最受欢迎的有效手段。

Some Mathematical Problems and Algorithms in Fibonacci's "Liber Abaci" Similar to Those in Ancient China

斐波那契《计算之书》中与中国古代数学相近的算题与算法

The course of development of abacus calculation;

二，我国珠算算法的发展历程；

Abacus& The 'Fifth Great Invention' of Ancient China

算盘&中国古代第五大发明

Conclusion The abacus mental calculation training could progress the children's basis cognitive ability.

结论珠心算训练对儿童的认知能力有一定影响。

You will have a fun time learning to play the abacus.

您将会非常喜欢学习如何使用算盘。

Research and Practice of Three-Step Teaching Method of Abacus Calculation

大学珠算三步教学法的探索与实践

The Necessity of Strengthening Calculation with Abacus in High Vocational Education

论加强高职教育中珠算教育的必要性

The simplest example of this type is the abacus, which has been used in many parts of the world since ancient times.

这一类型中最简单的实例就是世界各地自古以来使用算盘。

Though nowadays calculators have Become a popular calculating device, many accountants still focus their attention on aBacuses with great passion.

如今电子计算器已成为普通的计算工具，但不少财会人员仍对中国算盘情有独钟。

Stow the luggage aft; ships with square sails sail fairly efficiently with the wind abaft; the captain looked astern to see what the fuss was about.

把行李装到尾部上；带有方形帆的船随风疾驰而去；船长到船的尾部看看发生了什么事。

The captain ordered the crews to stand abaft the main deck.

船长命令船员们站在主甲板后面。

Abaft every acknowledged man, there is a woman.

每个成功男人的背地，都有一个女人。

This thesis first introduces the history and the state-of-the-art of GPR technique, and its application and study for the engineering, and then explains the feasibility and essentiality of applying the technique of GPR to subgrade abamurus quality inspect. Based on the harvest of locale examination.

本文介绍了地质雷达技术和工程应用研究的历史与发展现状，说明了地质雷达技术在铁路路基挡墙质量检测中应用的可行性和重要性。

This paper puts forward a method of fast, handy, no destructive and effective testing which can be used to test the strength and geometrical dimension of subgrade abamurus using the method of earthquake wave velocity and GPR ( ground penetrating radar).

本论文提出使用地震波速法和地质雷达法检测路基挡土墙的强度和几何尺寸，是一种快速、简便、无损、有效的检测方法。