It also states their cause and prevention measures as well as the treatment of hardened plastic concrete cracks.

它们的成因和防范措施以及对已硬化塑性混凝土裂缝的处理。

youdao

Thermal plastic and plastic is defined as a specific temperature range can be repeated heating and cooling to soften hardened plastic such as polyethylene, PTFE and so on.

热塑料性塑料是指在特定温度范围内能反复加热软化和冷却硬化的塑料，如聚乙烯、聚四氟乙烯等。

youdao

The results show that the pre-hardened plastic-mould steel belongs to a little low machinability steel because of much hard inclusion existing in microstructure and its high strength and hardness.

结果表明，这类材料属较难加工材料，这主要是由于钢中存在大量硬质点，且材料具有较高强度和硬度所致。

youdao

Could steps Team Obama has taken - such as the closure of Guantanamo Bay, the release of some hardened terrorists held there to Yemen (where Abdulmuttalab claims he got his plastic explosive device), granting others access to civilian courts and constitutional rights, etc.

CENTERFORSECURITYPOLICY: Jihad 101