produce a margin的意思|示意

After all, digital film -flash memory -was a low margin proposition even if you had the huge fabs needed to produce it.

总之，数码胶卷(digital film)——闪存(flash memory)，是低利润产品，即使这需要你拥有庞大的工厂来进行生产。

It may not be obvious, but the second and third layouts produce identical behaviors: They both maintain a fixed margin between the view and its superview as the superview's width changes.

或许不是很明显，但是第二第三个布局产生一样的行为：即使父视图的尺寸发生改变，它们都让视图和父视图的边距保持不变。

If the bus incorporates a robust timing margin, small adjustments in the clock timing should produce no errors.

如果总线有充足的时间间隙，时钟时间上很小的调整不会产生错误。