| 摘要 |
<p>PCT No. PCT/US91/01490 Sec. 371 Date Mar. 7, 1991 Sec. 102(e) Date Mar. 7, 1991 PCT Filed Mar. 7, 1991.Compensated controls for a negative type load which, without degrading the quality of the control, permit direct use of the fluid power energy of the negative load for control of a resistive or positive type load, thereby greatly increasing the efficiency of the control system.</p> |
