Cabbage is a seed vernalization type crop. In case of a period of continuous low temperature weather during the sowing period, seedling transplanting can be used instead of seeding directly to prevent early bolting.
Cabbage is a seed vernalization type crop. In case of a period of continuous low temperature weather during the sowing period, seedling transplanting can be used instead of seeding directly to prevent early bolting.
Cabbage is a seed vernalization type crop. In case of a period of continuous low temperature weather during the sowing period, seedling transplanting can be used instead of seeding directly to prevent early bolting. A: 正确 B: 错误
Cabbage is a seed vernalization type crop. In case of a period of continuous low temperature weather during the sowing period, seedling transplanting can be used instead of seeding directly to prevent early bolting. A: 正确 B: 错误
Which of the following is true on the connection description? A: Shear connection work on the same principle as moment connection. B: Pin joints transfer therefore only forces and no moments. C: The principle of welding and bolting is the same. D: Different types of connection media attract different loading portions due to different stiffness, but can be used to share loads in the same joint.
Which of the following is true on the connection description? A: Shear connection work on the same principle as moment connection. B: Pin joints transfer therefore only forces and no moments. C: The principle of welding and bolting is the same. D: Different types of connection media attract different loading portions due to different stiffness, but can be used to share loads in the same joint.