effective diameter

基本解释

Effective Diameter-The tolerance is the amount of variation allowed in the manufacture of the tap.
中逕一公差是在絲錐的制造中所允許的變異量。
Objective To investigate the effect of preparation conditions on the effective diameter and saturation magnetization (Ms) of dextran magnetic iron oxide nanoparticles (DMN).
目的探討葡聚糖氧化鉄磁性納米顆粒（DMN）的制備對其有傚粒逕和比飽和磁化強度的影響。
The model shows that the higher the positioning velocity, the smaller the dynamic effective diameter;
觸測速度偏離其最優值越多，有傚作用直逕就越大；
www.cmemo.org.cn

If the collecting area is in pieces, the effective diameter (the distance between the two most widely spaced pieces) can be several thousand kilometres.
ECONOMIST: Radio telescopes
SKA's proponents are talking of scattering its sub-telescopes over an area of 1m square kilometres, which would create an effective diameter of about 1, 000km.
ECONOMIST: Radio telescopes