The Kuiper belt extends outward from Neptune's orbit, about 2.8 billion miles from the sun, to a bit less than twice Neptune's orbit, about five billion miles.

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Thus they were surprised when Dr. Brown and two colleagues spotted a 600-mile-wide icy world at a distance of eight billion miles that remained well outside the Kuiper belt even at the closest point in its orbit.

所以，当布朗和他的两名同事在80亿英里远的地方发现了一片直径600英里的冰雪世界时，科学家们颇为意外。就连该天体运行轨道的近日点也在柯伊伯带以外。

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history, present status and future of china's rubber additive industry

中国橡胶助剂工业的过去、现在与将来

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lanxess, a german chemicals firm, is selling a nanoparticle rubber additive called nanoprene for tyre treads.

德国化学品公司朗盛，正着力销售一种名为nanoprene的用于胎面的纳米颗粒橡胶添加剂。

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design of sector magnet magnetic coupler for dynamic filter press

动失水仪扇形磁体磁耦合器设计

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According to new observations, it can be proved quantitatively that a mode of eight major planets of the Solar System is a symmetrical structure: four terrestrial planets and the asteroid belt;

根据最新的观测结果，作者定量论证了太阳系的八大行星模式：它是对称的四个类地行星和小行星带；

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Evolutionary Direction of Spiral Galaxies Described by Theory of Density Wave and the Mode of Eight Major Planets of the Solar System

用密度波理论描述旋涡星系的演化方向和太阳系的八大行星模式

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The 8 Planets Of The Solar System:

太阳系八大行星

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Among the eight planets in the solar system, the earth we live in is really special.

在太阳系内八大行星中，我们居住的地球的确与众不同。

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Titan is the largest moon of Saturn, the sixth planet from our Sun.

太阳系八大行星中，土星至太阳距离第六，而土卫六是土星最大的卫星。

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All the eight planets go round the sun the same way. Each of them also turns of its own axis.

八大行星都围绕太阳运转，每个行星也绕着自转轴自转。

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So the new model of our solar system has eight classical planets.

所以新模型我们太阳系有八大行星。

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Besides the sun, solar system's leading member has eight major planets, also Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

除太阳外，太阳系的主要成员有八大行星，既水星，金星，地球，火星，木星，土星，天王星和海王星。

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Neptune is the eighth and outermost-known planet from the Sun in the Solar System.

海王星是太阳系第八大行星，也是太阳系最远的行星。

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front suspension rubber washer(left)

发动机前悬置软垫（左）

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front suspension rubber washer(right)

发动机前悬置软垫（右）

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structure analysis and simulation design of rubber washer punching press

橡胶垫冲边机结构分析与虚拟设计

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protection level: ip54 when it's within regulated bayonet mount range and rubber washer is used to fix the sealing nut.

防护等级：在规定的卡口范围内，旋紧迫紧头，达到IP54。

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how to solve the drift problem of rubber belt conveyer

胶带输送机胶带跑偏的原因及调整方法

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adopt the rubber belt conveyer for lead a piece

采用橡胶输送带为牵引件

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cause analysis and adjustment of rubber -belt conveyer's off- tracking

胶带输送机跑偏的原因分析与调整

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