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单词
bl4
释义
bl4
网络
生物安全水平四级；生物安全四级；生物安全水准四级
网络释义
1.
生物安全水平四级
（七）“
生物安全水平四级
（
BL4
）”是指生物医学或微生物学实验室，使用高效空气粒子过滤器（HEPA），在对外环境保持负 …
www.customs.gov.cn
2.
生物安全四级
2009-10-10 中国有没有
生物安全四级
(
BL4
)实验室？ 4 生物安全实验室:建筑技术 个人防护:设备 个人防护:器材 个人防护:制度 2…
zhidao.baidu.com
3.
生物安全水准四级
（七）“
生物安全水准四级
（
BL4
）”是指生物医学或微生物学实验室，使用高效空气粒子过滤器（HEPA），在对外环境保持负 …
big5.china.com.cn
例句
随便看
classification of defects
classification of diseases
classification of documents
classification of dust
classification of economic grouping
classification of economic units according to sectors
classification of electronic computers
classification of emission
classification of epilepsy
classification of equipment
classification of evidence
classification of expenditure
classification of expenditure by activities
classification of expenditure by character
classification of expenditure by function
classification of expenditure by fund
classification of expenditure by object
classification of expenditure by organization unit
classification of expenditures
classification of feeds
classification of fibre
classification of filling material
classification of finite simple groups
classification of fire hazards
classification of fits
英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/9/2 0:43:18