a young cow that has not produced a calf
没有生过小牛的青年母牛
热门单词
- a-amino isopropyl alcohol
- absolute endorsement
- abutment pier
- abyssal depth
- accessory case
- accessory corpus luteum
- account-receivable program(me)
- accuracy checking
- accuracy for vertical control
- accurate record
- acetic
- acetyl hydrate
- acid-lined converter (炼钢)
- acid-proof
- acidylation
- acoustic sounding
- acquisition of technology
- acromial extremity of clavicle
- acromelic gangrene
- acromere
- acrylic binder for pigment printing