|
|
|
|
|
|
|
|
|
Diamond-drill rod
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
|
Drill rod, английский
Drilling rod. hollow, externally flush-coupled rods connecting the bit and core barrel in a borehole to the swivel head of a rotary-drill rig on the surface. unit lengths of rod are usually 10 feet long and composed of two threaded parts, (a short pin-threaded coupling and a box-threaded length of heavy-wall steel tubing) connected together. the term "drill pipe" is applied to rods used in a similar manner on rotary rigs in petroleum-drilling operations. also called diamond-drill pipe, diamond-drill rod, drill pipe. compare drill pipe. see appendix, table 1, for rod sizes in general use.
|
Diamond-drill cover, английский
Boreholes drilled with a diamond drill and bits into rock surrounding an underground opening for the purpose of detecting water-bearing fissure or structures. compare cover. diamond-drill crew. the men needed to operate a diamond drill properly.
Diamond-drill men, английский
Members of a diamond-drill crew or persons trained to perform one or more duties connected with the operation of a diamond drill.
Diamond-drill pipe, английский
Diamond-drill sample, английский
Diamond-driller helper, английский
Rod, английский
- Baguette /barre /tige
- Surveying instrument made of wood and graduated in feet and tenths of a foot. used with various leveling instruments to determine differences in elevation between two points (22).
- Range operations department
- Range operations directive
- Rate of descent
- Repair and overhaul directive
- 1. a stick shape with rounded ends some bacteria are shaped like rods or are rod-shaped. 2. one of two types of lightsensitive cell in the retina of the eye. rods are sensitive to dim light, but not to colour. cone comment: rod cells in the eye are sensitive to poor light. they contain rhodopsin or visual purple, which produces the nervous impulse which the rod transmits to the optic nerve.
- Штабик
- Проволока; удочка; тяга, рычаг
- The connecting and coupling bars of the steam-engine. (see sounding-rod.)
- Reserve operable device
- Силовой шток гц или грп
- Rate of descent (icao)
- Retinal receptor that responds at low levels of luminance even down below the threshold for cones. at these levels there is no basis for perceiving differences in hue and saturation. no rods are found in the fovea centralis.2,6 concentrated toward the outer region of the retina, rods assist with mesopic vision and are responsible for scotopic night vision. compare cone. root mean square (rms): statistical measure of the magnitude of a varying quantity, such as current. square root of the mean square of a set of measures, usually a time series. s sampling, partial: testing of less than 100 percent of a production lot. sampling, random partial: partial sampling that is fully random. sampling, specified partial: partial sampling in which a particular frequency or a sequence of sample selection is prescribed. an example of specified partial sampling is the testing of every fifth unit.
- Retinal receptor that responds at low levels of luminance even down below the threshold for cones. at these levels there is no basis for perceiving differences in hue and saturation. no rods are found in the fovea centralis (iesna 1984). concentrated toward the outer region of the retina, rods assist with mesopic vision and are responsible for scotopic night vision. compare cone. root mean square (rms): statistical measure of the magnitude of a varying quantity. also known as quadratic mean, root mean square is especially useful when data varies between positive and negative (for example, a sinusoidal wave).
Rod, шведский
Rod, английский
Rod, русский
Скорость снижения
Rod, английский
Rod addition, английский
Rod anchor, английский
Rod anode tube, английский
Rod assemblies, английский
Where the gland, wipers, o-rings, and packing are found in a hydraulic cylinder rod (23).
Rod bearing, английский
See connecting rod bearing, roesch rocker pressed rocker arm of concave section, pivoting on a semi
Rod bender, английский
A powered device, with movable rollers and clamps, used to bend steel reinforcing rods to shapes required in reinforced concrete.
Rod bit, английский
A noncoring bit designed to fit a reaming shell that is threaded to couple directly to a drill rod, thus eliminating the core barrel in blasthole drilling, designated as 1*4 xrt, iy2 e, 1% a, 25/16 b, and 21s/16 n. also called blasthole bit.
Rod cells, английский
Low light photoreceptors concentrated toward the outer region of the retina. rods assist with mesopic vision and are responsible for scotopic night vision. compare cone cells. root mean square (rms): statistical measure of the magnitude of a varying quantity, such as current. square root of the mean square of a set of measures, usually a time series. ? ? = 1 r g l a = = 1 ? magnetic testing glossary 387 s
Rod changer, английский
Rod clamp, английский
Safety clamp
|
Drill goods, английский
Diamond-drill pipe, английский
|
|
|
|
|
|
|
