The <e1>flapper</e1> of the first stage hydraulic <e2>amplifier</e2> is rigidly attached to the midpoint of the armature flapper.
The flapper of the
The flapper of the first stage hydraulic amplifier is rigidly attached to the midpoint of the armature flapper.
<triplet> flapper <subject> amplifier <object> Component-Whole(e1,e2)