您要查找的是不是：
- P-T界線(xiàn)P-T boundary
- K／T界線(xiàn)K/T boundary
- P／T界線(xiàn)Permian/Triassic boundary
- E/K界線(xiàn)E/K boundary
- 這兩種意見(jiàn)界線(xiàn)分明。There are no indecisive boundaries between the two opinions.
- 高kHigh-k
- K肥K fertilizer
- （kk
- 這兩個(gè)鄰居在住房界線(xiàn)問(wèn)題上劇烈爭吵。The two neighbors disagreed bitterly about their boundary line.
- k/nk-out-of-n
- K泡potassium bubble
- 標明界線(xiàn)to designate boundaries
- K鏡K mirror
- 各級保護區應當有明確的地理界線(xiàn)。Protection zones of all grades shall be indicated by clear geographic demarcations.
- K相K phase
- 打破界線(xiàn)to break down barriers
- K-BK-B
- K=1K=1
- 他們站在界線(xiàn)外看比賽。They watched the match from the sidelines.
- K-LKarhunen-Loeve
