A stalagmite is below a stalactite and they both grow, eventually to meet.石笋在钟乳石下面,它们二者都在增长, 最终会合.Not every stalactite has a complementary stalagmite.不是每根钟乳石都有互生的石笋.Seepage flow can be observed in stalactite caves.在钟乳石溶洞...
The directionality of written English is from left to right.英文的书写方向是自左至右.It has the nature of randomness , generality, problem solving , radiativeness, directionality and creativity.它具有随机性 、 概括性 、 问题性、辐射性、指向性和创造性.The the...
a cryogenic storage system低温冷藏系统Trapping gas pump include: adsorption, such as pumps and cryogenic pumps.气体捕集泵包括: 吸附泵和低温泵等.Foamed plastic materials containing many small cells which are not connected are good cryogenic i...
The two London clubs are the only undefeated teams in the division.这两家伦敦的俱乐部是该级别里仅存的保持不败的球队。She was undefeated for 13 years.她13年保持不败。They are undefeated in 13 games.他们13场比赛未被打败过。...