通过NASA电视台的三个常规频道的播出，以及在空间站上的播放，我们同时提供了八个不同的视频源，这是又一个第一次。
With the standard three channels of NASA TV streaming, plus the Space Station views stream, we were broadcasting eight unique feeds of video at one time, another first.
随着周期性外源雌激素和个人雌激素增殖的时间越来越提前，许多女孩八岁大的时候就有了初潮。
With the proliferation of xenoestrogens, environmental estrogens that are bringing on periods younger and younger, many girls are as young as eight when Aunt Flow arrives.
本文论述了应用多源排列电阻率测深法及坑道-地面电阻率法在北京中国新闻学院及八王坟地铁站所取得的良好成果。
This paper deals with the effectiveness of applying multi-source sounding array and tunnel-ground resistivity method in ChinaNews institute and Bawangfen subway station.
焉耆盆地中生界含油气系统中，八道湾组是最主要的烃源岩层，烃源岩类型主要为煤系泥岩。
In the Mesozoic petroleum system in Yanqi basin, the Badaowan Formation is the principle source rock with coal-measure mudstone as the main type of source rock.
它由液态金属离子源，源尖微调装置，离子透镜及静电八极偏转器等组成。
The gun is composed of the liquid metal ion source of Ga, the tip microadjusters' assembly, the ion lens, and the electrostatic octopole deflector.
一种制备乙烯和一氧化碳混合物的方法，该方法包括使乙烷和氧源与催化剂接触，所述催化剂包含合成隐钾锰矿或八面体分子筛。
A method for producing a mixture of ethylene and carbon monoxide comprises contacting ethane and an oxygen source with a catalyst comprising synthetic cryptomelane or octahedral molecular sieve.
本文介绍了八毫米雪崩管脉冲振荡源的设计及研制，讨论了影响振荡源频谱纯度和相干性的独特的雪崩管特性。
In this paper the design and development of 8mm pulsed IMPATT source are introduced, the unique IMPATT properties which affect the oscillator spectral purity and coherency are discussed.
本文介绍了八毫米雪崩管脉冲振荡源的设计及研制，讨论了影响振荡源频谱纯度和相干性的独特的雪崩管特性。
In this paper the design and development of 8mm pulsed IMPATT source are introduced, the unique IMPATT properties which affect the oscillator spectral purity and coherency are discussed.
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