A new returnable actuator disk of metal seal structure butterfly valve was presented, and its principle, force analysis, characteristic of the actuator were discussed as well.
提出了一种双向压金属硬密封蝶阀蝶板可逆回转机构，讨论了可逆回转机构的工作原理、受力分析及特点。
Based on the force analysis of single bubble movement and movement characteristic research of many bubbles in random time section, the mathematics modeling of many bubbles movement was built up.
在对水下单气泡运动受力分析及任意时间剖面多气泡运动特性研究的基础上，建立了水下气泡群运动数学模型。
Structural characteristic of 20-hi rolling mill, roll configuration, working concept, the rolling force analysis, derivation and studying results are discussed this paper.
对20辊轧机构造特点、辊系配置、工作原理、轧制压力的分析、推导、计算进行了研究。
The restoring force model and the method for dealing with the characteristic value are also given, which can be applied to the elastoplastic dynamic analysis.
还给出恢复力模型及其特征点的取值方法，可进行底部框架抗震墙砖房的弹塑性动力分析。
This paper also analysis static force characteristic of the dome nuder different kinds of loads and static, dynamic testing of the actual dome structure.
文中还分析了肋环式穹顶在不同类型荷载作用下穹顶的静力特性以及实际穹顶结构的静力、动力测试。
Based on the analysis of tapping force system and characteristic of chip removal, it is confirmed that radial force, axial force and jam of chip removal are the main reasons for poor thread quality.
通过对攻丝切削力和丝锥排屑特点的分析，确定径向力、轴向力和排屑不畅是影响攻丝质量的主要因素。
In this papers, I drew a series of thrust and vertical force curve of linear motor by measure them in vary condition. Then, its static characteristic is gained and a theory analysis is made.
文章通过对直线电机在各种条件下所受的法向力与垂直力的测量，得出一系列电流-法向力、垂直力，频率-法向力、垂直力曲线，推出直线电机静态特性，并对其进行了理论分析。
It can also be used for measuring the characteristic parameters of swimmers and producing the force waveforms of various competitive strokes for technical analysis.
该训练器还可用作测试仪器，可测出运动员的特征参数，并给出各种泳法的力波形图，借以进行游泳技术的诊断。
They are tested firstly in testing saw with intent to analysis the force, power and dynamic characteristic, then put into operation in medium section mill for checking their performances.
首先在试验锯机上进行了中间试验，对各种锯片的力能参数、动态特性参数作了测试分析；然后又在现场进行了工业试验，考核了各种锯片的使用性能。
They are tested firstly in testing saw with intent to analysis the force, power and dynamic characteristic, then put into operation in medium section mill for checking their performances.
首先在试验锯机上进行了中间试验，对各种锯片的力能参数、动态特性参数作了测试分析；然后又在现场进行了工业试验，考核了各种锯片的使用性能。
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