Drawings will also include the material part Numbers, tolerances clearances, surface machining symbols, heat treatment information, surface protection, material weight and other necessary information.

图纸内容还应包括材料部件编号，间隙公差，表面机械加工符号，热处理信息，表面保护，材料重量，以及其他的必要内容。

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The test result showed that sepiolite fibre reinforced phenolic resin-based composite was a new ablation-resistant material for heat protection.

试用结果表明，海泡石纤维增强酚醛复合材料是一种新型耐烧蚀绝热防护材料。

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After following the chemical vapor deposition and carbonization of carbon-carbon composites in an argon graphite under the protection of heat-treatment, to improve and enhance the material properties.

经过化学气相沉积和炭化之后的碳一碳复合材料在氩气的保护下进行高温石墨化处理，以改善和提高材料性能。

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