大看台
发表于 2025-3-26 23:02:00
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洞穴
发表于 2025-3-27 02:41:48
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死亡率
发表于 2025-3-27 07:36:34
Mika Kivimäki,Johannes SiegristCorrosion can change from uniform corrosion to a localized attack because of differences in the metal or because of variations in the environment. This chapter deals with the metallurgical variables and the types of corrosion resulting from them.
vector
发表于 2025-3-27 11:55:47
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invert
发表于 2025-3-27 16:59:43
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Outspoken
发表于 2025-3-27 21:41:54
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无关紧要
发表于 2025-3-28 01:12:11
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FRAUD
发表于 2025-3-28 05:58:40
No pure refractory (high-melting) metal performs well in high-temperature air. In fact, not even metals melting as low as 1850°C (3360°F) oxidize satisfactorily, with the sole exception of chromium. Table 15-1 gives the melting points of high-melting pure metals and explains the problems they undergo at high temperatures.
半圆凿
发表于 2025-3-28 06:36:37
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雪上轻舟飞过
发表于 2025-3-28 14:04:49
Metallurgical Cells,Corrosion can change from uniform corrosion to a localized attack because of differences in the metal or because of variations in the environment. This chapter deals with the metallurgical variables and the types of corrosion resulting from them.