Also known as "h and chi Persei", this unusual double cluster, shown above, is bright enough to be seen from a dark location without even binoculars.

上图所示的这一亦称“h和chi英仙座”(“ h and chi Persei ”)的不同寻常的双星星群的亮度高到可以在一个暗处不用双筒望远镜就看到。

youdao

Then analyzing the characteristic of substrate integrated waveguide H-T, E-T and double Tee, and test the substrate integrated waveguide H-T.

分析了基片集成波导h - T和E - T和双t接头的特性，并对基片集成波导h - T接头进行了加工测试。

youdao

H bonds on facing folded chain crystal surfaces lead to a decrease of surface free energy and this fact is a main reason for the formation of double lamellae.

在双层片晶界面上的H键降低了表面自由能，这是形成双层片晶的主要原因。

youdao

So I show that here, so in green, you have what's called a carboxcylic acid group, a c o o h, which gets converted by s o c l 2 to a c double bond o c l or an acid chloride.

我在这里用绿色表示，我们所说的羧酸族化合物，碳，氧，氧，氢，它被亚硫酰氯转化为,一个碳氧双键与碳氯单键组成的酰氯。

麻省理工公开课 - 化学原理课程节选

Instead, we should implement reforms like the Immigration Innovation Act, which would nearly double the number of H-1B visas for high-skilled foreign workers.

FORBES: Tech Executives: Immigration Reform a Top Priority

Power-hungry parts see even more of a boost: they can carry Iris Pro graphics with embedded DRAM, which should double the 3D speed on H-series mobile chips (47-55W of typical power) and triple it for the R-series (around 65-84W) on the desktop.

ENGADGET