GB/T 7582-1987
声学 耳科正常人的气导听阈与年龄和性别的关系
Acoustics--Threshold of hearing by air conduction as a function of age and sex for otologically normal persons
- 实施日期
- 1987-11-01
- ICS 分类
- 详情补全后显示
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 70,494 条
GB/T 7582-1987
Acoustics--Threshold of hearing by air conduction as a function of age and sex for otologically normal persons
GB/T 7593-1987
Powered industrial trucks--Control symbols
GB/T 7592-1987
Boundary dimensions of E.O.T.cranes
GB/T 7574-1987
Information processing--Magnetic tapelabelling and file structure for information interchange
GB/T 7575-1987
Data communication--High-level data link control procedures--Consolidation of elements of procedures
GB/T 783-1987
Lifting appliance range of maximun capacities
GB/T 7585-1987
Capacity series and radio-frequency channel arrangement for analog microwave relay systems
GB/T 7604-1987
Determination of the aromatic hydrocarbon content in mineral insulating oils
GB/T 7521-1987
Multiple controllers in a CAMAC crate
GB/T 7523-1987
Subroutines for CAMAC
GB/T 7522-1987
CAMAC-Serial highway interface systems
GB/T 7554-1987
Protected 5-unit numerical code for telegram service
GB 7597-1987
Method of sampling for transformer and turbine oils in electric power industry
GB 7565-1987
Textiles--Tests for colour fastness--Specification for standard adjacent fabric:Cotton and viscose
GB 7544.1-1999
Rubber condoms--Part 1: Requirements
GB/T 7509-1987
Blank detail specification for microprocessor semiconductor integrated circuits
GB/T 7518-2005
Micrographics-Microfilming for ancient books on 35 mm roll film
GB/T 7553-1987
35mm Camera test chart target
GB/T 7515-1987
Information processing--Coding of machine readable characters (MICR and OCR)
GB/T 7513-1987
Layout of the Chinese ideographs on keyboard