柱状的钠沸石在方沸石上, 有著像是放射状的晶簇.与内含赤铁矿而成红色的杆沸石. Prismatic crystals of Natrolite on Analcime, forming an interesting cluster, Together with Hematite included Thomsonite.
Objective To explore the angiographic appearances of the hemodynamic change of spinal dural arteriovenous fistulae ( SDAVF ) .目的探讨硬脊膜动静脉 瘘 血液动力学改变的血管造影表现.The dural is the fin tissue covering the inside of the skull.硬脑膜是覆...
Watch out for bargains, but never buy dented cans.留意便宜货，但绝不要买表面凹陷的罐头。He called out to them to watch out for the unexploded mine.他冲他们大喊，叫他们小心哑雷。Watch out for sharp bends and adjust your speed accordingly.当心急转弯并相应调整车速。...
Nim heard a discreet cough and turned his head to see Josie standing at the doorway.尼姆听见有人低咳了一声,转过头去,发现乔西站在门口.While Karen was speaking, Josie lifted down two lengths of steel channel from the van's interior.凯伦说话的时候,...