pour point depressant造句怎么写

A pour point depressant (PPD) for improving the cold fluidity of diesel oils was studied.

Using Changqing and Qinghai waxy crude oils as research objects, the depressive effects of ethylene-vinyl acetate (EVA) copolymer pour point depressant on the waxy crude oils were studied.

Preparation of acrylate-styrene-maleic anhydride terpolymer as pour point depressant

polymeric pour point depressant additive

A test study on impact of pour point depressant on rheological property of high pour point mixed oil in subsea pipeline transportation in JZ20-2 oil and gas field