对口修建识图(国外英文资料).doc

对口建筑识图(国外英文资料) Bicolumn: the ratio of the linear dimensions corresponding to the physical object. Title bar: at the bottom right or bottom of each drawing, the title bar mainly represents information related to the diagram. Drawing wide specification is what kind of? Their side? And what is the relationship between AO = 1189 = 841 x 594 x 841 A1 A2 = 594 x 420 A3 = 420 = 297 x 210 x 297 A4 relations between length of A1 = AO / 2 A2 = A1/2 A3 2 A4 = = A2 / A3/2 pattern of dimensioning which a few parts are there? Size limit, dimension line, dimension number, size start-stop sign, dimension number. Projection: the method of projection of the object. Central projection method: the projection method of the ray intersection. Orthography: cast rays parallel and vertical and plane method, the projection can be real reaction object shape and size of the degree of benign drawing convenient but visual difference. The projection method: the way that the ray is parallel to each other but is tilted to the projection plane. Overhead projection: perpendicular to one projector and parallel to two other projective planes. Form analysis: the form of projection is decomposed into several relative projection drawing of the basic form of the third class, according to the projection image to come up with their respective representatives of the basic form, and then according to the original position are combined to come up with three sides projection drawing is shown in the shape of the combination. Axonometric projection: is it USES a set of parallel rays direction parallel to the arbitrary coordinates the eye will form along with three coordinate plane projection on a plane and the formation of the projection. Axial Angle: the Angle between the axis of the shaft. Cast surface with a plane tangent plane is usually plane parallel surface in the need to express the internal structure will form incision for the fluid projection of figure, profile: use plane tangent plane is usually plane p