The concept of square-free coloring was introduced in graph theory by Alon in 2002.
无正方形着色的概念由阿龙在2002年引入图论。
As the concept of square-free coloring was introduced in graph theory by Alon in 2002.
强边着色理论做为一般图的边着色的推广被自然的引入。
And the panels have to stay dust-free: just a seventh of an ounce of dust per square yard of panel can decrease solar power conversion by 40 percent.
偏偏太阳能板需要一个无尘的环境：每平方码只要有七分之一盎司的尘土就会降低太阳能板40%的转换效率。
But such places often come with lots of dust. And the panels have to stay dust-free: just a seventh of an ounce of dust per square yard of panel can decrease solar power conversion by 40 percent.
但此类地点通常有着大量的灰尘，而电池板必须远离灰尘：电池板上每个正方形区块只要有七分之一盎司的灰尘，就能减少40%的太阳能转化率。
Just two hitches: Tying square knots and lariat loops wouldn't help her get her job done and she didn't feel free to make contributions as she saw fit.
只是有两个问题：打平结和套索对她完成工作毫无助益，而且她感觉捐款也不是自发性的。
The 3 billion USD project overlooks the pal jumeriah and covers 1.4 million square meters of the Dubai media and technology free zone.
这个耗资30亿美元的项目位于迪拜媒体和技术自由区，它俯瞰珠美拉棕榈岛，占地140万平方米。
Square’s device is selling at the store for $9.95 but users get a $10 square credit when they sign up for an account and the apps are free.
Square扫描器售价9 .95美元，但用户在注册后可获得10美元Square信用，并且该应用是免费的。
And each atrium links for free entrance square square and flexible combination, meet the needs of the future function transformation.
而各个中庭广场与入口广场可以自由链接，弹性组合，满足未来功能转化的需要。
Have your free time in the Bell&Drum Tower Square of the and the Islamic street, then send off to the train station.
钟鼓楼广场自由活动，尝遍西安的小吃一条街，然后送火车站离开。
The vitrail avoids a construction over the surface of the square and keeps the space free for the dense city.
通过这个玻璃顶，避免了在广场上建造建筑物，使密集的城市保持了空间上的自由。
The proposal for two free boxes framing the large multipurpose synthetic grass sports square summarizes the project concept.
两个箱式建筑构造了大型多用途人造草地体育场，这个方案概括了项目理念。
The dual-frequency carrier phase observation equation is built and ionosphere-free predigested, the estimate formula of zenith wet delay is deduced with least square method.
建立了双频载波相位观测模型，并将其进行无电离层延迟化简，用最小二乘原理推导了天顶湿延迟的估值公式。
Slam latch is screwed onto latch support which is either screwed or welded to the door. Assembled without insert it can be opened with a tapered square key. Bolt has free stroke.
这种锁舌用螺丝装在锁支架上，而锁支架用螺丝固定或焊接在门上，无锁芯的装配时，可用锥形四方匙开启锁栓为自由行程。
A novel model based on free node spline function is put forward to improve the design of the polynomial least square filter.
提出了利用自由节点样条函数来改善多项式最小二乘滤波器设计的模型和方法。
The reciprocal theorem is used to make research on the bending of a set square with free hypotenuse under a concentrated load acting at any of its points, and its accurate solution is given.
应用功的互等定理研究了在一集中载荷作用下斜边自由的三角形板的弯曲问题，给出了该问题的精确解。
The square layout and efficient core distribution enhance this flexibility and result in a net floor surface of 80% of column-free Spaces which feature a 3, 5 meter ceiling height.
正方形的平面和高效的核心分流增强了的灵活性，实现净楼面80%的无柱区域和3.5米的挑高。
One large and transparent, another small and white, the two light bubbles float on the free-shaped square.
一大一小，一透一白，两个巨型泡泡轻盈地落在不规则形的广场地面上。
The hotel is located in an exclusive residential area, a 15-minute walk from Wenceslas Square, yet it also offers a shuttle service to Wencelas Square free of charge.
酒店位于一个高级住宅区，步行15分钟可以抵达Wenceslas Square广场，同时也为您提供前往Wencelsas广场的免费班车服务。
The hotel is located in an exclusive residential area, a 15-minute walk from Wenceslas Square, yet it also offers a shuttle service to Wencelas Square free of charge.
酒店位于一个高级住宅区，步行15分钟可以抵达Wenceslas Square广场，同时也为您提供前往Wencelsas广场的免费班车服务。
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