depth sounder
(pharmacology) A synthetic muramyl dipeptide analogue with potential immunostimulating and antineoplastic activity.
simple past tense and past participle of crack a book
A surname.
A device using echo sounding to measure the depth of a body of water
浅瀬を渡る前に、船長は測深機の表示を確認した。
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DiQt
Free
★★★★★★★★★★
