面定位 meaning in Chinese

planar location

Use a force press part on datums surface is necessary
4产品在面定位处须用外力夹紧。
The current trends of this field is to acquire the current density of dipole distribution rather than a few dipoles . based upon that , a new model was proposed - dipole layer localization method ( dllm ) : spherical dipole layer was used as source model , on which dipoles were distributed by equilateral triangles ; three concentric inhomogeneous sphere was used as head model , which contains scalp , skull and cortex with different conductance . the dipole distribution and scalp potential tomography were obtained with singular value decomposition ( svd )
鉴于该领域的研究趋势已从求取少数偶极子过渡到偶极子分布密度的获得，本文提出了新的模型? ?偶极面定位方法( dipolelayerlocalizationmethod ， dllm ) ：以等边三角形均匀分布的偶极子构成的偶极面(球面)作为源模型；包括头皮、颅骨和皮层的三层同心介质球作为头颅模型，运用奇异值分解来求解逆问题，从而获得偶极子分布和头皮电位分布，实现三维成像。