step penetrometer
Смотреть что такое "step penetrometer" в других словарях:
step wedge — penetrometer; a block of an absorber, usually aluminum, machined in steps of increasing thickness, used to measure the penetrability of x rays … Medical dictionary
penetrometer — An obsolete instrument for measuring the penetrating power of x rays from any given source. [penetration + G. metron, measure] * * * pen·e·trom·e·ter .pen ə träm ət ər n 1) an instrument for measuring the firmness or consistency of a substance 2) … Medical dictionary
Sediment Profile Imagery — (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of… … Wikipedia
Apollo 15, Lunar surface — Apollo 15 Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon and a total of 18½ hours outside the spacecraft on lunar extra vehicular activity. The mission was the first not to land in a lunar mare, instead… … Wikipedia
Geophysical MASINT — is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and… … Wikipedia
