1) perforated pipe
穿孔管
1.
Acoustic transmission matrix of reactive muffler containing units made of perforated pipe;
抗性消声器中含穿孔管时的声传递矩阵
2.
The transmission matrix is deduced by establishing equivalent model and dividing the perforated pipe to finite elements.
基于管道声学理论,分析了气流和声波同时通过穿孔孔径的穿孔管扩张消声结构的声传递基理,通过等效物理模型简化与单元划分,推导其声场传递矩阵,理论计算与实验结果对比表明,所建数学模型具有较高的预测精度。
3.
A new sludge discharging equipment is developed to ameliorate the performance of ordinary perforated pipe for its hard start and jam.
先后进行了小试和中试,根据中试所得较优的一种扩张管嘴排泥管应用在生产性试验中,在同等条件下与普通穿孔管进行比较。
2) perforated tube
穿孔管
1.
Acoustic attenuation performance prediction and analysis of perforated tube dissipative silencers;
穿孔管阻性消声器消声性能计算及分析
2.
The GT-POWER software is used to calculate the transmission loss of straight through perforated tube muffler and three-pass perforated tube muffler without gas flow,which are compared with experimental measurements to verify the accuracy and applicability of the software.
使用GT-POWER软件计算了直通穿孔管消声器和三通穿孔管消声器静态时的传递损失,并与实验测量结果进行了比较以验证软件的计算精度和适用范围。
3) pipeline partial corrosion
管线穿孔
4) tube perforation
炉管穿孔
5) pierced shell
穿孔毛管
1.
But as well as the applicaton of horizontal continuous casting billets , the amount of disfigurement of pierced shell inner and outer fold is increasing apparently,especially the outer fold is the very seriousone.
适当减小导板距,增大轧辊距,减小穿孔椭圆度;适当提高管坯加热温度和延长加热时间,均能显著减少穿孔毛管的外折缺陷,提高金属收得率。
6) Esophageal perforation
食管穿孔
1.
Nutritional support of esophageal perforation;
食管穿孔营养支持方式的探讨
2.
Treatment on thoracic esophageal perforation (21 cases report);
胸段食管穿孔的外科治疗(附21例报告)
补充资料：天津钢管公司管坯在250连轧管机组的穿孔机上穿孔
天津钢管公司管坯在250连轧管机组的穿孔机上穿孔
天津钢管公司管坯在250连轧管机组的穿孔机上穿孔
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条