混合气体的总压力是各组成气体的分压力的总和。
The total pressure of mixed gas equals to the summation of partial pressure of each composition.
采用译码器构成单总线控制，设计了智能电压源组成气体放电管直流击穿电压自动测试系统。
By using some encoders to construct 1-wire control bus, an intelligent power source is designed and the automatic test system of arrester direct current spark-over voltage is built up.
根据一种假设，这颗行星的重力场会对由尘埃和气体组成的原行星盘产生牵引力。
According to one hypothesis, the planet's gravitational field tugs on the protoplanetary disk of dust and gas from which it formed.
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。
Planets are believed to emerge from the accretion of particles in a disk of gas and dust as they whirl around the star.
据推测，所有行星都是由尘埃和气体组成的原始云团凝聚而成，其组成与木星的组成有些相似。
It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.
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。
Planets form from a disk of gas and dust swirling around a young star.
实验过程中，他们将精油分散成各自的组成成分，用气体色谱分析法和质谱分析法进行分析。
To do this, the oils were broken into their component parts and analysed using gas chromatography and mass spectrometry.
通过研究过滤后的恒星光，天文学家确定该行星大气的组成，以及气体被吹入太空的方向以及速率。
By studying the filtered starlight, astronomers can determine such a planet's atmospheric composition and also the direction and velocity that any gas lost to space is moving.
重重障碍减缓了它们的速度，使它们能够以组成新一代恒星和行星的材料充实孕育恒星的气体云。
These impediments slow their speed, so they can enrich star-forming gas clouds with the ingredients for new generations of stars and planets.
但是这没有什么值得庆祝的，因为冻土融化将释放几十亿吨的甲烷，温室气体的重要组成部分。
But that is nothing to celebrate, because melting permafrost will release billions of tonnes of methane, an especially potent greenhouse gas.
烟雾和催泪气体飘过这个古老的城市，它的鹅卵石小径组成的迷宫里充斥着爆竹的爆炸声和急救车的警笛声。
Smoke and tear gas floated through the old city as its maze of cobbled lanes rang to the sounds of exploding firecrackers and ambulance sirens.
棕矮星是一些由炽热的气体组成的球，它们缺乏像行星那样足够的质量来进行氢的燃烧。
Brown dwarfs are balls of warm gas that lack the mass necessary to fuse hydrogen at their core, as stars can.
由于彗星主要是由冻结的水和气体组成的冰，撞击地球的彗星将会蒸发。
Because comets are largely ice made up of frozen water and gases, a comet striking Earth then would have vaporized.
宇宙网络被认为是漏斗形的星系，由环绕宇宙的气体和暗物质组成，就像是混沌的星系间高速公路。
The cosmic web is thought to funnel galaxies, gas and dark matter around the universe, something like a chaotic intergalactic highway.
虽然这些恒星只有五十万年——按照恒星的时间尺度计算，它们还处于婴儿期——但是大都已经失去了其形成行星的由气体与尘埃组成的圆盘。
Although the stars were just half a million years old-still in their infancy in stellar time scales-most had already lost their planet-forming disks of gas and dust.
这些粒状斑的平均直径为1000千米，由太阳内部上升的高温气体组成。
On an average size of 1000 km, these cells are made of hot gas rising from inside the Sun.
在来自星云中心蓝巨星紫外线辐射的压力下，这些由气体和尘埃组成的恒星形成区域尖端的电离氢分子将不复存在。
Ionized molecular hydrogen can be seen evaporating from the tips of these star-forming columns of gas and dust, under pressure of ultraviolet light from the nebula's central blue giant stars.
在经典黑暗星云中，蛇是星际气体和尘埃组成的卷须，长约650光年。
A classic dark nebula, the Snake is a tendril of interstellar gas and dust about 650 light years away.
由于与强烈的高层阳光的相互作用，电离层由相对炽热的带电气体组成。
The ionosphere is made up of relatively hot gases that are electrically charged due to interactions with intense, high-altitude sunlight.
虽然组成地球大气78%的氮是一种惰性气体，但它却有多种化学式。
Nitrogen, which, makes up about 78% of the Earth's atmosphere, is an inert gas but it has more reactive forms.
最顶层的是超热日冕，由日冕环和电离气体流组成。
At the top is the super-hot corona, which is made of structures such as loops and streams of ionized gas.
照片所捕获的是由气体和尘埃所组成，高达3光年的巨柱的顶端。它被附近明亮恒星们的耀眼光芒所遮盖。
Captured here are the top of a three-light-year-tall pillar of gas and the dust that is being eaten away by the brilliant light from nearby bright stars.
这六颗行星都比地球要大，而且很可能由岩石物质和气体混合物组成。
All six are larger than Earth and are likely composed of mixtures of rocky material and gas.
天文学家们会告诉你，它们诞生于原始的由气体和尘埃组成的云团的崩溃。
Astronomers will tell you that they are born in the collapse of primordial clouds of gas and dust.
蝌蚪是由密集的寒冷的气体和星尘所组成的，大约10光年长，可能存在正在形成的恒星。
Composed of denser cooler gas and dust the tadpoles are around 10 light-years long, potentially sites of ongoing star formation.
红色细长的丝状体是由冷却下来的气体组成，气体处于磁场中。
The red threadlike filaments are composed of cool gas suspended by a magnetic field.
红色细长的丝状体是由冷却下来的气体组成，气体处于磁场中。
The red threadlike filaments are composed of cool gas suspended by a magnetic field.
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