with rhythm the arithmetic teacher the artist's artificial articles on the vehicle.

1、

to save engergy and protect enviorment, it is important to use high-intensity lighten al-alloy in vehicle.

分析说明出于节能和环保的考虑,运载工具采用高强铝合金轻量化是其重要途径之一.

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2、

with rhythm, the arithmetic teacher put the artist's artificial articles on the vehicle.

算术老师把艺术家的人造物品有节奏地放到运载工具里.

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3、

even if i possessed the skill to play tennis, i couldn't handle the stress.

即使我拥有打网球的技能，我也无法应对这种压力。

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4、

i maintain reasonably good health, play tennis frequently, and avoid excess in drinking or smoking.

我保持着相当好的健康状况，经常打网球，并且在饮酒或吸烟方面避免过度。

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5、

tennis requires a lot of quick and dynamic movement.

打网球需要大量快速而动态的运动。

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6、

you can choose to play tennis or go golfing.

你可以选择打网球或去打高尔夫球。

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7、

they enjoy playing tennis and cricket.

他们喜欢打网球和板球。

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8、

my hobbies include writing letters, playing football, enjoying music, practicing photography, and engaging in tennis.

我的业余爱好包括写信、踢足球、欣赏音乐、练习摄影和打网球。

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9、

the curve of higher order pitch-line design for driven gear and velocity ratio function is modeled mathematically.

以两段高阶椭圆组成的连续光滑封闭的曲线作为主动齿轮的节曲线，依据齿轮啮合理论建立了其配偶从动齿轮节曲线设计及该齿轮机构传动比函数的数学模型。

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10、

the gear transmission is the most popular form in the machinery transmission, and the circle gears transmission with a fixed-transmission ratio has been used widely among them.

在机械传动中，齿轮传动是应用最为普遍的一种传动形式。其中，圆齿轮在实现定传动比传动时应用最广泛。

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11、

the dangerous lubrication gear points are obtained and the effect of the gear module, transmission reduction, pressure angle on the lubrication film pressure distribution and film thickness profiles are also gained from the numerical calculation.

计算得到了齿轮润滑的危险点以及齿轮模数、传动比和压力角对润滑油膜压力和膜厚的影响规律。

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12、

the calculation and analysis indicate that the oil film thickness become thicker with the increase of gear modulus, reduction ratio, pressure angle, rotating velocity and oil viscosity.

增大齿轮的模数、传动比和压力角等参数，以及提高转速、增大润滑油粘度可以提高齿面间的润滑油膜厚度。

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13、

all the merits mentioned above are demonstrated by the compound gear transmission ratio optimization in transmission systems.

该算法已在复合齿轮传动系统的传动比优化设计中得到了成功应用。

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14、

a study on the limit of single staged transmission ratio in harmonic gear drive

谐波齿轮传动单级传动比极限的研究

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15、

overall speed ratio division of the spread-type cylindrical gear reducers

展开式圆柱齿轮减速器的传动比分配

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16、

rapid calculating on transmitting ratio and engagement efficiency of planetary involute gear

渐开线齿轮行星传动的传动比和效率计算

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17、

the calculation of optimum speed ratio of three-stage bevel-helical gear reducer

三级圆锥&圆柱齿轮减速器最佳传动比的计算

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18、

to overcome the disadvantage of tatsuno combined pumps and to improve the characteristics of the pumps, a new kind of pump with the fixed transmission ratio is proposed, the teeth of which are circle-arc and its envelope.

针对TATSUNO双圆弧组合泵存在的不足，提出了该泵中的一对齿轮副采用定传动比的圆弧及其包络线齿轮副的方案，以改善泵的性能。

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19、

using matlab software, some common noncircular pitch curve and transmission gears ratio curves were calculated and analyzed. the closed property of noncircular gears, undercutting condition, pressure angle, pitch curve convex-concave characteristic value, were examined.

运用MATLAB软件，对几种常见的非圆齿轮节曲线及传动比曲线进行了计算分析，通过非圆齿轮基本参数的计算，并对其根切、凹凸性等进行了校验。

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20、

in this article, the optimal design mathematical modeling and its solution method are presented according to the analysis on the equal intensity principle and lubrication principle and smallest size principle and so on, that influences double cylinder gear deceleration case's transmission ratio distribution.

通过对影响双级圆柱齿轮减速器传动比分配的等强度原则、润滑原则、最小外形尺寸原则等多因素的分析，提出传动比分配优化设计的数学模型及其求解方法。

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