单词	d-butylene
释义	d-butylene = 1-butene
随便看	Back to back duplex bearing back-to-back duplex bearing back to back escrow back-to-back escrow Back to back export first back-to-back face-to-face duplex bearing Back-to-back financing back-to-back funding Back to back FX agreement back-to-back gateways back to back houses back-to-back houses back to back hvdc Back to back import first back to back interference back-to-back interference Back to Back Ionization Chamber back-to-back ionization chamber Back to Back LC back to back L-C back to back L/C back-to-back L/C back to back letter of credit back-to-back letter of credit back to back loan