海洋经济运行监测技术规程
Technical specification for ocean economy operation monitoring
2022-09-26
DIN 57105-12
Operation of power installations; particular requirements for experiments with electrical energy in lecture rooms [VDE Specification]
电力设施的运行;教室电能实验的详细要求[VDE规范]
1983-07-01
DIN VDE 0105-12
Operation of power installations; particular requirements for experiments with electrical energy in lecture rooms [VDE Specification]
电力设施的运行;教室电能实验的详细要求[VDE规范]
1983-07-01
GOST R 52123-2003
Иллюминаторы для водолазных барокамер с рабочим давлением до 4,9 МПа (50 кгс/см кв.). Общие технические условия
用于潜水高压舱的孔洞 工作压力高达4,9 MPa(50 kgf/sq sm) 一般规格