电学家

Einstein himself devoted the second half of his life in quest of a unified field theory for the gravitation and the electromagnetism, but he failed at last.

但是理论学家相信，自然界是统一的，因此引力、电磁力、弱力、强力这四种基本相互作用应该可以用一个统一的理论来描述。

BEIJING, November 15, 2009 Xinhua, according to Singapores "Lianhe Zaobao," citing Russian media, Russia, a local volcanologist, said November 15, Eurasias largest volcano, located in Russias Far East Kamchatka Peninsula on the g Liu Qiefu volcano began erupting.

2009/10/31-56 中新网2009年11月15日电据新加坡《联合早报》援引俄罗斯媒体报道，俄罗斯当地火山学家11月15日称，欧亚大陆最大的火山、位于俄罗斯远东勘察加半岛上的克柳切夫火山开始喷发。

Since its earliest days, with the exceptions of having electricity and some other modern conveniences added, very little has changed in the cafe's elegant appearance or in the refined, stopped-in-time atmosphere of the seven high-ceilinged rooms of the artistic and literary haunt.

从建立之初到现在，这家咖啡馆除了通了电和添置了一些现代设备外，没有多大改变，装潢还是那么雅致，而在艺术家和文学家经常惠顾的七间空间很高的房间里，气氛依旧幽雅，当时的气息依稀可见。

The journal has provided authoritative summaries of significant novel developments in this constantly evolving field for analytical chemists, environmental engineers, biochemists, biotechnologists and biologists since 1971, including critical evaluations of innovative methods, apparatus, chromatography, crystallization, extraction, distillation, ultrafiltration, magnetic separation, sedimentation and electrodialysis etc.

该杂志自1971年开始就为分析化学家，环境工程师，生物化学家，生物技术学家和生物学家提供了在这不断进化领域重要新进展的权威性摘要，包括对于创新方法的鉴定评价，器械设备，色谱，结晶，萃取法，蒸馏法，超滤作用，磁选，沉降以及电渗析等等。

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。