1、

Based on the Wiener index ( W), a harmonic topological index ( H) is proposed. H has been shown good structure selectivity, and appears uniqueness for 149 alkanes from ethane to decane.

基于Wiener指数(W)建立调和拓扑指数(H),该指数对乙烷至癸烷的149种烷烃呈现惟一性表征。

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2、

The Wiener index is such a topological index and it has been widely used in Chemistry fields.

Wiener指数就是一个与化合物的物理化学性质密切相关的拓扑指数,它的性质广泛应用于化学领域中。

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3、

Value of the Wiener Index for a Class of Linear Phenylene Molecular Graph h M_h

一类一般线性聚亚苯基图M h的Wiener拓扑指标

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4、

The construction of this device is described in kinematic diagram ofmechanism, diagram and diagram respectively.

以机构运动简图、拓扑图和装配图描述了该装置的结构.

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5、

Configuration Topological Transformation of a Self-Reconfigurable Robot Hand Corporality is the base of natural and artificial forms.

一种自重构机器人手抓取构形的拓扑转换自然形态和人工形态的构成基础是形态的物质性。

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6、

Third, HNN method is sensitive to the topology of the problem but SOFM does not.

SOFM算法对待解决问题的拓扑分布不敏感,而HNN算法的收敛性对待求解问题的自身分布有很强的依赖性;

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7、

After several hours they managed to put out the fire and save the town.

消防员们迅速扑灭了小火,挽救了城市.

英语晨读30分(高三)

8、

Firemen were then able to put out the blaze.

然后消防员扑灭了大火.

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9、

An original series-resonant current-mode high frequency link ( HFL) sine-wave inverter is presented in the paper.

提出一种新型的串联谐振电流源模式隔离的高频链正弦波逆变器拓扑结构,详细介绍了其工作原理。

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10、

Introduced topology and principle of the half-bridge bi-directional current mode high-frequency link ( HFL) inverter, designed its control system based on DSP in detail.

分析了一种半桥双向电流源高频链逆变主电路的拓扑结构和工作原理,详细介绍了基于DSP的控制系统设计。

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11、

The eagle poised in mid-air ready to swoop on its prey.

那鹰在 半空 中盘旋准备扑向猎物.

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12、

When Petr slid collect the ball, our momentum meant that a collision was unavoidable.

当皮特滑行扑球时, 我们的动量意味着冲撞是不可避免的.

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13、

And he has to guess correctly which way to dive.

这样他必须猜准扑球的方向.

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14、

Erik was lunging for him, arms spread wide.

艾瑞克敞开双臂朝他扑过去.

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15、

He crashed the glass on the table and lunged for me.

他把杯子摔到桌子上,然后向我扑过来.

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16、

He lunged for the nearest painting he could see, a Caravaggio.

他扑向他所能看到并离他最近的一幅油画-一幅卡拉瓦乔的作品.

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17、

Tasting Note : Brilliant straw yellow with green tint. Full of aroma likes pear, grapefruit and citrus.

特征: 明亮的麦秆黄色略泛绿光,扑鼻浓郁果香,似梨 、 西柚香.

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18、

Its soft and chewy, soup-smelling incense, the practice of fine, unique.

它柔软耐嚼, 汤香扑鼻, 做法精细, 独具一格.

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19、

Sliding to put pressure on Distin, his shorts are muddied for the first time.79 minutes: First chance to score for Arsenal.

第79分钟:获得打进阿森纳首球的机会。接亨利传球,可惜他的射门被詹姆斯扑出。

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20、

A reasonable distribution of material is received by topology optimization considering the constraint of fatigue life.

考虑疲劳寿命的约束,进行车架支架结构的拓扑优化,得到材料的合理分布结果。

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