In the following conclusions, ( ) is wrong. A: If the object displaces, it must deform at the same time. B: If there is no displacement at each point of the object, there must be no deformation. C: If the object deforms, there are always some points in the object to displace. D: The magnitude of the displacement depends on the deformation and constraint of the object.
In the following conclusions, ( ) is wrong. A: If the object displaces, it must deform at the same time. B: If there is no displacement at each point of the object, there must be no deformation. C: If the object deforms, there are always some points in the object to displace. D: The magnitude of the displacement depends on the deformation and constraint of the object.
形变强化是材料的一种特性， 是( )阶段产生的现象。 A: Elastic deformation B: Impact deformation C: Uniform plastic deformation D: Yield deformation
形变强化是材料的一种特性， 是( )阶段产生的现象。 A: Elastic deformation B: Impact deformation C: Uniform plastic deformation D: Yield deformation
形变强化是材料的一种特性， 是( )阶段产生的现象。 A: Elastic deformation B: Impact deformation C: Uniform plastic deformation D: Yield deformation
形变强化是材料的一种特性， 是( )阶段产生的现象。 A: Elastic deformation B: Impact deformation C: Uniform plastic deformation D: Yield deformation
韧度是衡量材料韧性大小的力学性能指标，是指材料断裂前吸收( )的能力。 A: Plastic deformation work and fracture work B: Elastic deformation work and plastic deformation work C: Elastic deformation work and fracture work D: Plastic deformation work
韧度是衡量材料韧性大小的力学性能指标，是指材料断裂前吸收( )的能力。 A: Plastic deformation work and fracture work B: Elastic deformation work and plastic deformation work C: Elastic deformation work and fracture work D: Plastic deformation work
韧度是衡量材料韧性大小的力学性能指标，是指材料断裂前吸收( )的能力。 A: Plastic deformation work and fracture work B: Elastic deformation work and plastic deformation work C: Elastic deformation work and fracture work D: Plastic deformation work
韧度是衡量材料韧性大小的力学性能指标，是指材料断裂前吸收( )的能力。 A: Plastic deformation work and fracture work B: Elastic deformation work and plastic deformation work C: Elastic deformation work and fracture work D: Plastic deformation work
在陈述某研究的价值时，哪种说法较为恰当？ A: The research will help to understand deformation processes. B: The research can help to understand deformation processes. C: The research may help to understand deformation processes. D: The research should help to understand deformation processes.
在陈述某研究的价值时，哪种说法较为恰当？ A: The research will help to understand deformation processes. B: The research can help to understand deformation processes. C: The research may help to understand deformation processes. D: The research should help to understand deformation processes.
( ) is an important means of strengthening metal materials. A: elastic deformation B: plastic deformation C: stretching D: fibrous structure
( ) is an important means of strengthening metal materials. A: elastic deformation B: plastic deformation C: stretching D: fibrous structure
For plane bending the characteristics of deformation are ( ). A: The cross section remains plane when bent; B: The axis after deformation is a plane curve; C: All external loads act on the same plane; D: The axis after deformation is in the same plane with the loading plane.
For plane bending the characteristics of deformation are ( ). A: The cross section remains plane when bent; B: The axis after deformation is a plane curve; C: All external loads act on the same plane; D: The axis after deformation is in the same plane with the loading plane.
An axial compressive force F＝Fcr is acting on an ideal column in linear equilibrium. And then the column produces the bending deformation due to a small lateral disturbing force. If the disturbing force is removed at this time, ( ) . A: The bending deformation will disappear and return to a straight line B: The bending deformation is reduced and the straight line shape can not be restored C: The bending state is not changed D: The bending deformation continues to increase
An axial compressive force F＝Fcr is acting on an ideal column in linear equilibrium. And then the column produces the bending deformation due to a small lateral disturbing force. If the disturbing force is removed at this time, ( ) . A: The bending deformation will disappear and return to a straight line B: The bending deformation is reduced and the straight line shape can not be restored C: The bending state is not changed D: The bending deformation continues to increase
The characteristic value of bearing capacity of foundation is the bearing capacity of foundation considering both the foundation strength and the deformation.
The characteristic value of bearing capacity of foundation is the bearing capacity of foundation considering both the foundation strength and the deformation.