The solution to light pollution is to use lower-wattage outdoor bulbs and full cutoff shielding.

解决光污染的方法就是使用低瓦数的户外灯泡与完全阻隔溢光的遮罩。

youdao

Countries like Indonesia and the Philippines would probably settle for shielding a handful of such products from the full force of a tariff cut.

类似与印度尼西亚和菲律宾这样的国家，可能竭力赞成对这些农产品实行减税。

youdao

Weld the outer side member with a full butt weld under shielding gas.

用气体保护全对接焊，焊接外侧梁。

youdao

It turns out, and we're going to get the idea of shielding, so it's not going to actually +18 feel that full plus 18, but it'll feel a whole lot more than it will just feel in terms of a hydrogen atom where we only have a nuclear charge of one.

结果是我们会有,屏蔽的想法,所以它不会是完整的，但是它会比原子核电荷量,吸引力要大很多,只有1的氢原子的。

麻省理工公开课 - 化学原理课程节选

So if we have total +2 and complete shielding -1 where that can actually negate a full positive charge, because remember our nucleus is plus 2, +1 one of the electrons is minus 1, so if it totally blocks it, all we would have left from the nucleus is an effective charge of plus 1.

抵消一个完全的正电荷,因为记住我们的原子核是,其中一个电子是,所以如果它完全挡住了它，我们从原子核中留下的，全部有效电荷就是，所以，在我们的第一个例子中,我们的第一种极端情况。

麻省理工公开课 - 化学原理课程节选