- 丁(nail; spike)
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
(chemistry) butyl group
(chemistry) butyl group
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
(chemistry) butyl group
(chemistry) butyl group
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