Modifiers matching engine:

• smaller,
• small,
• relational,
• static,
• large,
• automotive,
• size,
• complex,
• motor,
• industrial,
• key,
• logical,
• powerful,
• mechanical,
• stationary,
• true,
• outside,
• computational,
• driving,
• internal,
• agricultural,
• economic,
• base,
• larger,
• vertical,
• microscopic,
• destructive,
• main,
• handheld,
• military,
• traditional,
• new,
• structural,
• real,
• fixed,
• rotary,
• efficient,
• macroscopic,
• marine,

Simple categories matching rotary:

• machine,
• motion,
• grinder,
• means,
• equipment,
• actuator,
• engine,
• object,
• part,
• mechanism,
• valve,
• beater,
• instrument,
• cutter,
• compressor,
• seal,
• knife,
• tool,
• mirror,
• filter,
• device,
• appliance,
• pump,
• applicator,
• unit,
• bearing,
• machinery,
• section,
• member,