关节炎
发表于 2025-3-23 10:24:21
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MORT
发表于 2025-3-23 17:27:50
Nicole Mockler,Susan Groundwater-Smithonia and hydrazine. Though the boiling point of propane ( −42°C) and ammonia ( −33°C) are below ambient temperature (in most places) these substances are still classed as liquids because they can be stored as liquids at room temperature (25°C) at the modest pressure of about 10 atm.
ARBOR
发表于 2025-3-23 21:44:11
https://doi.org/10.1007/978-3-030-69720-4of many solids, including some plastics, occurs at the surface. By gaseous fuels, consideration is given to the storage state at ambient temperatures even though the fuel in usage can be in the liquid state.
Verify
发表于 2025-3-23 23:05:37
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Ccu106
发表于 2025-3-24 05:19:44
https://doi.org/10.1007/978-3-642-50260-6bout 1000 million tonnes in 1985 and close to ten times the 1950 value in 1995. The energy usage during this period dropped from 9.6 MJ/kg to about 5.7 MJ/kg in 1990. Research continues in all aspects of cement from quick setting to increase in strength — the predictability of which is still a major problem.
有害处
发表于 2025-3-24 10:30:23
Liquid Fuels,onia and hydrazine. Though the boiling point of propane ( −42°C) and ammonia ( −33°C) are below ambient temperature (in most places) these substances are still classed as liquids because they can be stored as liquids at room temperature (25°C) at the modest pressure of about 10 atm.
LIEN
发表于 2025-3-24 13:02:24
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intricacy
发表于 2025-3-24 18:41:15
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平息
发表于 2025-3-24 20:08:11
Cement, Ceramics, and Composites,bout 1000 million tonnes in 1985 and close to ten times the 1950 value in 1995. The energy usage during this period dropped from 9.6 MJ/kg to about 5.7 MJ/kg in 1990. Research continues in all aspects of cement from quick setting to increase in strength — the predictability of which is still a major problem.
Indicative
发表于 2025-3-25 03:11:50
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