但是，当它们经过粒子加速器发射的电子束扫描后，聚合分子链被去饱和。
But when they are zapped with a beam of electrons from a particle accelerator, the polymer chains are desaturated.
观察镇上“动物束链”的标识上是否写着“宠物禁止入内”的字眼。
Observe whether "No Pets" is included in "For Lease Signs" around town.
这些结构是由一束束双螺旋DNA链构成。
The structures are made from bundles of double-helix DNA strands.
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