纯棉被芯是用棉花作为传统的保暖材料，由于棉纤维细度较细有天然卷曲，截面有中腔，所以保暖性较好，又由于它具有透气、透湿等优点。
双语例句原声例句
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固定被芯防止滑动，精心设计，让您和您的家人放心。
Fixed the quilt core, meticulous design, let you and your family feel relieved.
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主要生产含盖床上用品套件，各种散件被套、床单、枕套、枕芯、被芯、毛毯、蚊帐及家纺周边配套产品，酒店纺织配套产品等。
We mainly produce first-rate sets, quilt cover, bed sheet, pillow cover, pillow, quilt, blanketry , mosquito net, hotel bedding, and so on.
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气体反应堆要求充实，以此能，达到20%，所以，我们需要制造出在芯块中的铀，那是锆管道的金属外壳，那被放置入一个反应堆核心里去。
Gas reactors require enrichments in the order of up to 20%. So we need to fabricate the uranium into pellets which are clad in zirconium tubes which are placed into the reactor core.
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It makes a lot of sense when we look at it energetically, because if we think about a 1 s core electron, that's going to be held really, really tightly to the nucleus.
从能量的观点来看这是非常合理的，因为如果我们考虑一下，1，s，芯电子，它会被原子核束缚得非常非常紧。
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Core electrons are all those electrons held in really tight with the nucleus in the inner shells, whereas the valence electrons are only those electrons that are in the outer-most shell, or at your highest value of n of the principal quantum number.
芯电子是那些,在内壳层被原子核束缚得非常紧的电子，而价电子只包括,最外层的电子，或者说主量子数，n，的值最大的那些电子。
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