It is difficult to set down an exact formula because cork is a natural product.

要确定脱模剂的精确配方是困难的，因为软木是一种天然产物。

youdao

The exact formula set for the midplane of the uniform-field wedge magnet is derived.

本文推导了均匀场楔形磁铁在中心平面的精确光学公式。

youdao

Note: This is not an exact measurement or an exact formula and should be treated as a rough approximation.

注意：这不是十分准确的测量或一个准确的公式，这只是个近似值而已。

youdao

No, it's an exact formula.

不,这是精确等价的

耶鲁公开课 - 金融市场课程节选

The Scottish government is cutting the amount it gives councils by an average of 2.6% but the exact amount varies as central government money is distributed to councils through a complicated formula which takes account of several different factors about the area's population.

BBC: D-day for Scottish council budgets

The exact amount of money each council gets from the government is worked out through a complex formula.

BBC: Councils setting out budget plans