auxin gradient theory 生长素梯度学说
density gradient theory 密度梯度理论 ; 理论和密度梯度理论
ADVANCES IN STRAIN GRADIENT THEORY 应变梯度理论进展
broad gradient theory 广义梯度理论
macro-gradient theory 广义梯度理论
Strain gradient theory 应变梯度理论
strain-gradient theory 应变梯度理论
special gradient theory 狭义梯度推移理论
alternating gradient theory 交变梯度理论
Then, we introduce a strain gradient theory and its main applications, in which no high-order stresses are included.
其次主要介绍了不含高阶应力的一类应变梯度理论及其应用；
The forming process and active mechanism of the Generalized-Gradient theory can be simplified as it's of the duality structure from high gradient to low gradient in space.
广义梯度推移过程及其作用机理可简约为“高梯度—低梯度二元空间结构”的形成、作用机理及其演化过程。
According to gradient theory early-developing regions should have mass transfer from early-developing regions to late-developing regions, but it does not happen as expected.
按照区域梯度理论应该发生的先发区域边际产业向后发区域的大规模转移，却没有按照预期的发生。
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