研究表明， 热化学聚合反应和热化学硬化作用使绿松石废弃料的工艺和力学性能得以明显改善。
The results indicate that thermochemical polymerization and thermochemical hardening help to enhance the technological and mechanical properties of wasted turquoise.
这种化学成分减少血管壁脂肪沉积，帮助预防动脉硬化保持血管健康。
The high levels of phytochemicals may help prevent hardening of the arteries by reducing plaque build-up and keeping blood vessels healthy.
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.
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