所有科技知识-科学参考

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。

positive Cotton effect	positive counter-ion	positive counting	positive course pitch	positive crankcase ventilation (PCV)
positive crankcase ventilator	positive creep	positive criteria	positive crystal	positive current
positive curvature	positive curvature sector	positive cut-off	positive cycle	positive damping
positive definite	positive definite differential form of degree two	positive definite form	positive definite function	positive definite Hermitian form
positive definite Hermitian inner product	positive definite Hermitian matrix	positive definite Hermitian operator	positive definite Hermitian transformation	positive definite inner product
positive definite integral form	positive definite kernel	positive definite matrix	positive definiteness covariance	positive definite operator
positive definite quadratic form	positive definite second variation	positive definite sequence	positive definite symmetric kernel	positive definite symmetric matrices
positive definite transformation	positive delivery	positive delivery of oil	positive density	positive derail
positive deviation	positive diageotropism	positive die	positive dihedral angle	positive direction
positive discharge	positive-discharge bucket elevator	positive-discharge elevator	positive dislocation	positive-dispacement pump
positive dispersion	positive-displacement air compressor	positive-displacement compressor	positive-displacement engine	positive-displacement flow meter
positive-displacement grout pump	positive-displacement hydraulic drive	positive displacement hydraulic motor	positive-displacement meter	positive-displacement metering valve
positive-displacement motor	positive displacement motor	positive displacement pump	positive-displacement pump	positive-displacement screw type compressor
positive-displacement supercharger	positive displacement type	positive-displacement type fuel pump	positive distortion	positive distribution
positive divisor	positive dobby	positive double complex	positive double-lip seal	positive draft
positive drag	positive drive	positive driven type supercharger	positive driving	positive echo
positive economics	positive edge	positive edge clock	positive edge of cross cut	positive effect of antagonicity
positive electricity	positive electrode	positive electron	positive element	positive emission
positive emulsion	positive energy	positive-energy state	positive energy wave	positive error
positive eugenics	positive even numbers	positive excess	positive expiratory end pressure (PEEP)	positive expiratory endpressure (PEEP)
positive exponent	positive eyepiece	positive factors	positive feed	positive feedback
positive feed-back	positive feedback amplifier	positive feeder	positive force	positive frequency
positive frequency modulation	positive function	positive functional	positive g	positive gain
positive-geared feed	positive gearing	positive getropism	positive ghost	positive glow
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