xemen.[鸟]北极鸥Xen.[化]元素氙(xenon)的符号xenocryst and xenolith捕虏晶和捕虏体xeno-transplantation异种移植xeno-competitive PCRX-PCRXenolith and xenocryst捕虏体和捕虏晶Xenopsylla hawaiiensis夏威夷客蚤xenotrans.plantation异种移植xenopus nuclear factor爪蟾核因子xenographic bone graft异种骨移植xenograph surface area异种皮移植表面面积xed length record file固定长记录文件

conjunctival xerosis结膜干燥,眼结膜干燥