The phrase "upper shaft" is correct and usable in written English.
For example, "The upper shaft of the machine was damaged beyond repair."
The straight, narrow blade is mounted vertically between a pulsating lower shaft and a reciprocating upper shaft, which together move the blade rapidly up and down.
The axis of the upper shaft could be raised or lowered a short distance to accommodate variations in the dies or differing coin thicknesses.
The gas stream, containing 8percentt zinc, 10percentt carbon dioxide, and 20percentt carbon monoxide, is directed from the upper shaft to a lead-splash condenser, a chamber in which an intense shower of lead droplets is thrown up by rotors revolving in a pool of molten lead.
Draw the anatomical axis line of the upper (shaft) femoral segment (yellow line) by drawing the mid-diaphyseal line.
A solar panel attached to the handle absorbs electrons from light and transmits them to your teeth through ionized water and a titanium oxide semiconductor in the upper shaft of the toothbrush.
When planning for cases where lengthening is required in addition to femoral deformity correction, by applying the classic CORA deformity analysis method using anatomical axis planning, the anatomical axis of the upper (shaft) part of the femur would be represented by a mid-diaphyseal line.
In a document posted on the agency's Web site (PDF), investigators said the agency had received three complaints about a separation of the upper intermediate shaft from the steering column, each of which happening at low speeds.
During the following year, radiographs suggested a pseudarthrosis between the right femoral head and the upper femoral shaft.
Simultaneous examination under anesthesia of both hips was performed: there was found to be no contact between the head and upper femoral shaft on the right side.
They determined that an upper basement and elevator shaft had caved in, creating the sinkhole.
The upper end of the shaft required a pad or socket (drill pad) in which it could rotate freely.
