Above the critical point, the second-order phase-transition line between the superfluid and the normal phase is determined.

在三相点温度以上，超流和正常相之间有二级相变。

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The clock transition frequency and linewidth of the clock transition line were obtained by scanning the microwave frequency in a narrow region.

通过减小微波扫描的频率范围，得到钟跃迁频率和谱线线宽。

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This rapid zone of transition is called the upper timberline or tree line.

这种快速的过渡地带被称为“上树带线”或“林木线”。

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And you can see in the song that Sabrina sings something of the mechanism, perhaps, by which this transition is effected. Look at line 897.

你们也可以在Sabrina唱的那首歌中看出,由转变引起的，一些办法，看第897行。

耶鲁公开课 - 弥尔顿课程节选

First there was the observation by Michelson who back in the late 1880s had done very precise interferal metric measurements of the hydrogen lines and had observed that the 656 nanometer line 3 associated with the transition of n equals 3 to n equals 2 was, in fact, a doublet.

首先是麦克逊,在1880年底的观察,他以公制单位对氢原子的光谱线,作了准确的，无其他因素干扰的，测量,发现当n值由3变为2时,会同时得到波长为656纳米的谱线3,实际上是有两条线。

麻省理工公开课 - 固态化学导论课程节选

Intel has yet to fully transition its desktop line over to its Turbo Boost-boasting Core 2010 series, yet its competitor has already announced its own, imaginatively titled, competing technology in the form of Turbo Core.

ENGADGET: AMD's hexacore Phenom II X6 will offer Turbo Core automatic overclocking

Intel announced this week that it would start to transition to 14 nm line width semiconductor processes by the end of 2013.

FORBES: Rare Gases and Fine Lines

First, unlike the transition from character-line to graphical user interfaces, touch user interfaces do not provide a better environment for productivity applications.

ENGADGET: Switched On: An Office outside the Metro