The phrase "a true plane" is correct and usable in written English.
It can be used in contexts discussing geometry, aviation, or metaphorical uses where authenticity or accuracy is being emphasized.
Example: "In geometry, a true plane is defined as a flat, two-dimensional surface that extends infinitely in all directions."
Alternatives: "an actual plane" or "a genuine plane".
Flatness tolerances control the divergence or departure of a surface from a true plane and it can be used independently of any size tolerance.
After working as a mechanic for various Manchester machine manufacturers, Whitworth went to London in 1825 and at Maudslay & Company devised a scraping technique for making a true plane surface.
In addition, cells within a slice come from different transmural depth, as the cut is conducted in a true plane, not one that emulates an "onion shell" of equidistant position relative to the ventricular surface (so cells in the centre of a slice will be from deeper transmural layers than those at the periphery).
The WDBF test was found to be better at reproducing industrial conditions than the DBF test over a much wider range of conditions, but even the new configuration remains substantially different from a hypothetical true plane-strain test.
The aim of this study was to determine if there are clinical differences between three-dimensional (3D) cephalometric midsagittal planes used to describe craniofacial asymmetry and a true symmetry plane derived from a morphometric method based on visible facial features.
The level is used to create a true horizontal plane and it should be used with feeler gauges to measure the amount of drift to the true plane.
The wall provided by Wright slanted outward, following the outward slant of the exterior wall, and paintings were not supposed to be hung vertically or shown in their true plane but were to be tilted back against it.
While true plane connectivity has to date remained elusive, its promise remains vast.
Where the deformity is both angulation and rotation, the true plane of deformity is oblique to both the long axis and the transverse plane.
Open image in new window Fig. 4 Plane of osteotomy The horizontal axis on the protractor lies in the plane of angular deformity; this means that when viewing the bone as in the example on Fig. 4, the bone has been rotated such that the true plane of angular deformity faces the viewer.
Therefore, midline landmarks used to construct 3D midsagittal planes are also likely to deviate from the true plane of symmetry.
