underhand

adj.

暗中或秘密进行的，诡诈的；（球赛时投球）低手的；

adv.

秘密地，不正当地；（投球时）低手地；

Design Spans - Underhand Cut and Fill Mining
David Bell Mine Underhand Cut and Fill Sill mat Test
Constraints for action selection: Overhand versus underhand grips.
Prism adaptation of underhand throwing: Rotational inertia and the primary and latent aftereffects
Six step method for teaching and training the underhand pitching technique
How to Auction a Bottleneck Monopoly When Underhand Vertical Agreements are Possible
Determining Method of Backfill Strength for Underhand Drift Cut-and-Fill Stopping Based on Reliability Theory
Upper and lower body strength in relation to underhand pitching speed by experienced and inexperienced pitchers.
Backfill technical analysis based on reliability theory in the underhand drift cut-and-filling stoping
Specificity and variability of practice, and contextual interference in acquisition and transfer of an underhand volleyball serve