The light arrives at a low angle, however, as the Sun makes a daily circuit around the horizon, and icebergs cast long shadows over the surrounding sea ice.
然而，当太阳每天沿着着地平线转动时，阳光只能以很低的角度到达南极大陆，将这里的冰山制造出长长的影子，投射在周围的海冰之上。
The structure and performance of core and winding in SC9 series resin cast dry-type transformer is introduced. Its ability of withstanding impulse and short circuit is analysed emphatically.
介绍了SC9新系列树脂浇注干式变压器的铁心和绕组结构特点及性能，重点分析了该产品的耐冲击能力、抗短路能力等。
Introduced BGO scintillator detector electric circuit design which used in the Continuous metal cast crystallizer in the steel and iron company.
介绍了一种在钢铁连铸结晶器连续液位仪上使用的BGO闪烁体探测器电路的设计。
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