Four-point rigid hitch 四点刚性挂接装置
point rigid body 结构点
rigid tine with renewable point 可换尖的刚性锄齿
rigid body fixed-point rotation 刚体定点转动
rigid three-point pressure knee orthosis 三点加压式膝反屈矫形器
While this provides the advantage of having a single point of truth for each piece of data, it makes it rigid and difficult to modify at a later stage if required.
虽然这样做的优势是每段数据都有一个惟一真实的版本，但这为以后的修改带来不便。
"You want it very rigid and stiff, but from an electrical point of view you also want it to allow ions to flow through the material," says Dr Greenhalgh.
“材料要坚韧稳定，但从通电的角度看也需要让电离子顺利通过，”格林浩尔博士说。
The point implicit method is used for chemical source terms to avoid rigid.
为避免刚性过强，化学反应源项用点隐方法处理。
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