热塑塑料可通过加热和加压成形和再成形，而热固塑料却由于在硬化过程中发生了化学变化而不能再成形。
Thermoplastics can be shaped and reshaped by heat and pressure but thermosets cannot be reshaped because they undergo chemical changes as they harden.
而平滑肌细胞凋亡与动脉粥样硬化和血管成形术后再狭窄密切相关。
The apoptosis of smooth muscle cells was related to the atherosclerosis and restenosis of vessels.
目的探讨经皮血管内超声溶栓再通动脉硬化闭塞症闭塞动脉的可行性。
Objective To investigate the feasibility of recanalizing occluded arteries in arteriosclerosis obliterans by intravascular ultrasound thrombolysis through percutaneous approach.
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