线状的中释
Genes are spiraled, threadlike particles made of DNA (deoxyribonucleic acid)..基因是由DNA（脱氧核糖核酸）组成的丝状螺旋微粒。
The red threadlike filaments are composed of cool gas suspended by a magnetic field..红色细长的丝状体是由冷却下来的气体组成，气体处于磁场中。
