密度计

density gauge

secret / confidential / close / thick / dense

density / thickness

to pass / to spend (time) / measure / limit / extent / degree of intensity / degree (angles, temperature etc) / kilowatt-hour / classifier for events and occurrences

to estimate / Taiwan pr. [duo4]

surname Ji

to calculate / to compute / to count / to regard as important / to plan / ruse / meter / gauge