常見例句雙語例句The green gas cloud is now essentially a delayed, optical echo of the dead quasar.綠色的氣體云通常被看做是泯滅后的類星體的余燼，能用肉眼觀察到。Waiting for a gas cloud to stumble into their vicinity isn't a very efficient means of hunting.守株待兔地等待氣體云闖入其領地可不是有效率的捕獵方式。But it's also possible that Jupiter formed directly from a collapsing gas cloud, with no underlying planet to do the vacuuming.但木星也有可能是從一團坍縮的氣體云直接形成來的，不需要行星前體做吸引氣體的過程。原聲例句One shows the remains of a dying star four thousand light years away which has thrown off a cloud of glowing hydrogen gas.權威例句Only if alpha were a smidgen smaller when the light passed through the gas cloud could such a pattern have been produced.ECONOMIST: Fundamental physicsBut this gas cloud, because it is so far away, about 40, 000 light years is still seeing the quasar, though we are not.NPR: What Makes Our Solar System Special?And so, what we believe in this case happened is there used to be an extremely luminous quasar right next to this gas cloud.NPR: What Makes Our Solar System Special? 返回 gas cloud