Be sure to use proper valve material-types for both temperature and chemical resistance.
确保采用与温度和耐化学性相匹配的材质的阀门。
If an external cooling jacket is used, the requirement on valve material can be further reduced.
如在阀体外加上外冷却夹套，则可进一步降低对阀材料的要求。
The physical property and mechanical performance must be considered when selecting the valve material.
在材料选择时必须考虑材料的物理性质和机械性能。
Service temperature should be considered in selection of the proper thermoplastic valve material for the application.
在实际应用中选择适当的热塑性塑料阀门材质时应该考虑工作温度。
OBJECTIVE Relationship of prosthetic valve material, bacterial concentration and subcutaneous soft tissue infection was studied in vivo.
目的通过动物实验，评价人工心瓣材料和不同浓度细菌与皮下软组织感染的关系。
The study work is focused on the effect of temperature upon mechanical properties, creep, initiation and propagation of fatigue crack for the valve material.
着重温度对气门材料的力学性能、蠕变和疲劳裂纹形成与扩张的影响等问题进行分析和研究。
Describe the structure characteristic and working principle of pressure seal swing check valve. Material selection and thrust ring design.
阐述了自压密封旋启式止回阀的结构特点、工作原理、材料选用和止推环设计。
Describe the structure characteristic and working principle of pressure seal swing check valve. Material selection and thrust ring design.
阐述了自压密封旋启式止回阀的结构特点、工作原理、材料选用和止推环设计。
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