The bags have tough exterior materials to protect against knocks, rain, and dust.
这些袋子结实的外层材料有防撞、防雨、防尘的作用。
Furthermore, if the water ice was mixed in with rock and dust, it would be protected from evaporation.
此外，如果水冰与岩石和灰尘混合在一起，它就不会蒸发掉。
Planets are believed to emerge from the accretion of particles in a disk of gas and dust as they whirl around the star.
行星被认为是由围绕恒星旋转的气体和尘埃组成的圆盘中的粒子累积而成。
Ultraviolet radiation and violent stellar winds have blown out an enormous cavity in the gas and dust enveloping the cluster.
紫外线和猛烈的星际风，在气体以及包裹星群的灰尘上吹出了一个硕大的洞。
They are found also in air and dust.
它们也存在于空气和灰尘中。
As the comet nears the sun, its ice melts, releasing gas and dust that stream away into space.
当彗星靠近太阳时，它的冰层融化，释放的气体和尘埃飘向太空。
Strap on your dancing shoes and dust off your hula hoop—workouts with a theme will be more popular than ever in 2010.
绑上你的舞鞋，掸掉呼啦圈上的灰尘——在2010年有主题的锻炼将比以往更受欢迎。
The air resounded with smoke and dust.
烟尘在空中浮荡。
Rain and dust are also tainted.
雨水和泥土也遭到污染。
There was a smell of rats and dust.
那里有股老鼠和灰尘的味道。
It is covered with mire and dust.
它满是污淖。
Lint and dust dances in the afternoon.
细线，微尘于午后起舞。
Saturn's rings are made of ice and dust.
土星环是由冰和尘埃构成。
To leave our planet nothing but rock and dust.
除了岩石和尘土外不在我们的星球留下任何东西。
There are a lot of bruises, paper cuts—and dust.
这些在我身上都发生过。还有多次的擦伤，被纸割伤—— 更不要说灰尘。
Float Wood floats on water and dust floats in the air.
木头浮于水面上，灰尘则飘于空中。
Hot blue stars formed from the compressed gas and dust.
周围还密布着是由压缩的气体和尘埃反射的蓝色星光。
They ate everything and dust storms are now routine.
它们无所不吃，所以现在沙尘暴成为常态。
We will send you with the original shoes box and dust bag.
我们将赠送原装鞋盒和防尘袋。
Planets form from a disk of gas and dust swirling around a young star.
行星是由围绕着年轻恒星旋转的气体和灰尘的盘状物所组成。
The interstellar cloud of gas and dust is an active star-forming region.
由气体和尘埃组成的星系云是一个恒星形成的活跃区域。
When I ride my motorcycle I keep my mouth closed to keep bugs and dust out.
我骑摩托车时会闭上嘴巴，以免虫子和灰尘进入嘴里。
On the left, marked by red gas and dust clouds, is irregular galaxy M82.
左边，以红色气体和尘埃云为标志的，是不规则星系m 82。
He traveled homeward through a region made barren by drought and dust storms.
他穿过一片由干旱和沙暴造成的荒凉不毛的地区。
Light and radio waves are absorbed and scattered by interstellar gas and dust.
光波和无线电波能被星际气体和尘埃吸收及散射。
The workmen are still in the corridors outside, generating noise and dust.
工匠们仍在屋外走廊劳作，嘈杂声中夹杂着飞扬的尘土。
The workmen are still in the corridors outside, generating noise and dust.
工匠们仍在屋外走廊劳作，嘈杂声中夹杂着飞扬的尘土。
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