查询词典 planetesimals

The planetesimals accretion s of the Earth obviously have two stages, including initial accretion and late accretion .

地球的星子吸积过程具有明显的两阶段性，即原地球吸积阶段和晚期吸积阶段，而后期的吸积过程对上地幔及地壳的化学成分不均一性的影响尤为显著。

The accretion of these "planetesimals" is believed to take a few hundred thousand to about twenty million years, with the outermost taking the longest to form.

这些微行星体的增长会用到几百万年到2千万年的时间，而最外面的部分最晚形成。八、&两个关键&和第二减速点。

When the last piece of late autumn when the leaves fell to earth, I'm tired of bleak autumn, quiet planetesimals; tired of Luoxia with solitary duck, Greenfield and whistles.

当深秋最后一片叶子落到泥土上时，我已经厌倦了萧瑟的秋风，寂静的星子；厌倦了落霞与孤鹜，松涛与鸽哨。

Small town with the state, from large roadside and the planetesimals out of the officials most is the fire dragon dance to bring luck then?

小城连州，从大路边与星子出旳官员最多，是否舞火龙带来旳运气呢？

The metallicity excess could result from either the accretion of planets/planetesimals on to the star or the protostellar molecular cloud.

含金属过多是由行星/行星原质或原始恒星分子云的吸积引起的。同时，这种过金属性质也表现在类太阳&有行星&恒星中（参见图表2c）。

These gasses gradually cooled off, turning into drops of liquid that later solidified into chunks of rock, ot planetesimals.

这些气体逐渐冷却，形成液滴随后固化为岩块，星子。

Small town with the state, from large roadside and the planetesimals out of the officials most is the fire dragon dance to bring luck then?

小城连州，从大路边与星子出旳官员最多，是否舞火龙带来旳运气呢？只要鞭炮不停，火龙就会不停地舞下去。

Miss, is dressed in a dream's clothing and shoes, and shake off a tear of the planetesimals, hidden bitterness of the melodies seem like little fireflies, glitter dip under the stars from Acacia dream green shadow.

思念，是一袭梦的衣衫，抖落带泪的星子，幽怨的旋律似点点流萤般，忽闪起相思星空下蘸绿色的梦影。

A planet on the other hand is built up out of the dust that surrounds a star. When a star is formed there is still a disk of gas surrounding it. As this gas cools, it condenses and forms solid grains. These grain particles accrete into large bodies called planetesimals, which then collide and accrete to make protoplanets. These protoplanets evolve into planets like the planets in our own solar system.

行星演化与恒星不同：恒星形成之后，周边的气体尘埃云冷却之后凝结形成，成为行星雏形，众多小行星雏形聚合碰撞，演化成成熟的行星；没有内部的核聚变；质量超过木星13.6倍，就会产生核聚变，如果还未至木星86倍，尚处于棕矮星的阶段，将会向恒星演化；持久的核聚变需要足够大的质量来支撑，温度也不足支撑氢向氦的转变。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。