刚度

刚度	gāng dù	stiffness
刚	gāng	(literary) hard; firm; strong / exactly; precisely / barely; only just / just; only a short while ago
度	dù	to pass / to spend (time) / measure / limit / extent / degree of intensity / degree (angles, temperature etc) / kilowatt-hour / classifier for events and occurrences
度	duó	to estimate / Taiwan pr. [duo4]