- engineering phase
- n.技术方面
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
Phase — A phase is one part or portion in recurring or serial activities or occurrences logically connected within a greater process, often resulting in an output or a change. Phase or phases may also refer to:In science and engineering* Phase (matter),… … Wikipedia
Phase-change memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile … Wikipedia
Phase-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Engineering Projects — ▪ 1995 Introduction BRIDGES Notable Engineering Projects(For Notable Engineering Projects in work, see Table (Notable Engineering Projects).) As the decade of the 1990s reached its midpoint, the limits to bridge design were being… … Universalium
Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… … Wikipedia
Phase (matter) — In the physical sciences, a phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform.[1] Examples of physical properties include density, index of refraction, and chemical … Wikipedia
Phase transition — This diagram shows the nomenclature for the different phase transitions. A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. A phase of a thermodynamic system and the states of matter… … Wikipedia
Phase space — In mathematics and physics, a phase space, introduced by Willard Gibbs in 1901, is a space in which all possible states of a system are represented, with each possible state of the system corresponding to one unique point in the phase space. For… … Wikipedia
Phase I Environmental Site Assessment — A Phase I Environmental Site Assessment is a report prepared for a real estate holding which identifies potential or existing environmental contamination liabilities. The analysis, often called a Phase I ESA, typically addresses both the… … Wikipedia
Phase shift module — A phase shifter is a microwave network which provides a controllable phase shift of the RF signal [Microwave Solid State Circuit Design, 2nd Ed., by Inder Bahl and Prakash Bhartia, John Wiley Sons, 2003 (Chapter 12)] [RF MEMS Theory, Design and… … Wikipedia
Phase Change Material — A phase change material (PCM) is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes… … Wikipedia