20200826a2020    k  y0engy50      ba <br/><br/>
 - Title screen 
<br/><br/><label>Subjects--Corporate Names: </label><br/>труды учёных ТПУ<br/>электронный ресурс<br/>acorn shell characterization<br/>eco-friendly drilling mud<br/>fluid loss reducer<br/>green additive<br/>rheological models<br/>rheology modifier<br/>буровые растворы<br/>реологические модели