pleonaste
plural of squawk duck
(mineralogy) A black variety of spinel.
plural of nonscholar
(organic chemistry) A colourless gas, CH₂=CHCl, used in the manufacture of the plastic polyvinyl chloride
鉱物学者は、顕微鏡で観察する前に黒色スピネルの標本に注意深くラベルを付けた。
Don't have an account? Sign up
Do you have an account? Login
DiQt
Free
★★★★★★★★★★
