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科学时代收录了1160609条科普词条,基本涵盖了常见科普常识及英语词汇的翻译,是科学学习和研究的有利工具。

system of civil law system of classification system of collective security system of common law system of compensatory financing
system of concurrent forces system of conservation laws system of contract teaching system of coordinates system of coplanar forces
system of coset representatives system of customs security system of cutting system of direct estimating system of drilling
system of education system of education certificate system of enrolment system of equations system of estimating increases
system of exploration and exploitation in the international seabed area system of financial administration system of financial audit system of forces system of forces
system of forest regulation system of government system of government functionary system of holding back system of inequalities
system of integers system of integrated standardization system of international civil jurisdiction system of Jacobi equations system of liability
system of lifelong education system of linear equations system of linear homogeneous equations system of linear inhomogeneous equations system of lines
system of logarithms system of meaning system of mental phenomenon system of moral education evaluation System of National Accounts
System of National Accounts--System of National Accounts(SNA) System of National Accounts (SNA) System of National Accounts(SNA) system of national regional autonomy system of natural inference
system of non-homogeneous linear equations system of numbers system of numeration system of official documents system of ordinary differential equations
system of parallel forces system of partial differential equations system of particles system of person system of personal instruction
system of primary education system of profound knowledge system of promoting system of property rights system of psychology
system of quantities system of quantities system of quasi-linear hyperbolic equations system of quasi-linear parabolic equations system of reciprocal instruction
system of religion hierarchy system of reward and punishment System of San Francisco system of school education system of school organization
system of sign system of subject headings system of targets system of unit system of units
system of units system of units of measurement system of vassalage system of vocational education system of wage labour
system on board system on board (SoB) system on board--system on board (SoB) system on chip system on chip (SoC)
system on chip--system on chip (SoC) system operator (sysop) system optimization system outlook system parameter
system parameter table system partition system peak load system performance system performance effectiveness
system performance index system performance information system performance monitor system performance test system perspective
system planning system policy system production time system program system programme
system programmer system prompt system psychology system queue area system R
system reaction time system recovery system reform system rehearsal system reliability
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