







Bell jar
This paper proposes an automatic calibration system of bell prover gas calibration facility.
Both the siphon trap and bell are one piece with no seams or glued joints.

Chinese and English fill-in vocabulary worksheets
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Open the tool →钟罩 (zhōng zhào) means “Bell jar”.
钟罩 is pronounced zhōng zhào in Mandarin Chinese.
“Bell jar” is 钟罩 (zhōng zhào) in Chinese.
This page has 2 example sentences using 钟罩, each with pinyin and an English translation.