Chinese ancient architectural structure forms are mainly ( ). A: Beam-column and brick-wood structures B: Beam-lifting and bucket-piercing C: Arches and civil structures D: Beam frame and rammed earth structures
Chinese ancient architectural structure forms are mainly ( ). A: Beam-column and brick-wood structures B: Beam-lifting and bucket-piercing C: Arches and civil structures D: Beam frame and rammed earth structures
Crane and lifting systems
Crane and lifting systems
In order to improve the bending rigidity of the beam, it can be realized by (). A: Choose high-quality materials B: Reasonably arrange the beam support to reduce the span length of the beam C: Reduce the load acting on the beam D: Choose a reasonable cross-sectional shape
In order to improve the bending rigidity of the beam, it can be realized by (). A: Choose high-quality materials B: Reasonably arrange the beam support to reduce the span length of the beam C: Reduce the load acting on the beam D: Choose a reasonable cross-sectional shape
The youth ______ when I was lifting my baggage.
The youth ______ when I was lifting my baggage.
light beam
light beam
What are beams in reinforced concrete building? A: simply supported-beam B: built-in beam C: edge beam
What are beams in reinforced concrete building? A: simply supported-beam B: built-in beam C: edge beam
16. Mechanical lifting of air by the upslope slant of the terrain is called _______
16. Mechanical lifting of air by the upslope slant of the terrain is called _______
The ___ is a load-carrying beam structure of the vehicle.
The ___ is a load-carrying beam structure of the vehicle.
声束轴线 beam axis
声束轴线 beam axis
A laser beam can be turned into a ____ weapon.
A laser beam can be turned into a ____ weapon.