二进位符号，二进(位记数)法。的英文

binary notation

• 二:    two
• 进位:    carry; carry-over; ...
• 符号:    character; sign; s ...
• 进:    advance; move forw ...
• 位:    place; location
• 记:    remember; bear in ...
• 数:    frequently; repeat ...
• 法:    law