【化】 double-acting cylinder
both; double; even; twin; two; twofold
【化】 dyad
【医】 amb-; ambi-; ambo-; bi-; bis-; di-; diplo-; par
affect; effect; intention; action; motive; operation
【医】 action; effect; process; role
【经】 role
cylinder
【机】 air cylinder; cylinder; steam cylinder