"in different heights" is correct and can be used in written English. You can use it when discussing the height of any collection of different items, for example: "The trees in the park vary in different heights.".
In addition, the PMV values in different heights and around human body are analyzed in detail.
The strain gauges on the transverse-steel reinforcement were positioned in different heights along the expected plane of shear fracture.
The water flows to a measuring container downstream of the parapet wall where it discharges over three outlets in different heights.
The different additives bring the carbon black in different heights on the paper based on the washing efficiency of the additive.
Such measurements have also been demonstrated to result in different height values than that would be obtained with the patient in the upright position [9].
To assess the accuracy of delineation, histograms were produced of number of stems observed in the field versus those delineated in different height classes within the forest plots.
Finally by considering frequency response function, natural frequency of the plate is extracted in different height of the fluid and effects of some parameters on the natural frequencies such as fluid height and dimensions of the plate are studied.
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Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia