Паршин, Сергей Георгиевич. Технология сварки. Сварка плавлением. Технология сварки цветных металлов и сплавов: учебное пособие / С. Г. Паршин; Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: Изд-во Политехн. ун-та, 2015 (Санкт-Петербург, 2020). — 1 файл (4,28 Мб). — Загл. с титул. экрана. — Цифровая копия печатной публикации 2015 г. — Доступ по паролю из сети Интернет (чтение, печать, копирование). — <URL:http://elib.spbstu.ru/dl/2/si20-967.pdf>. — DOI 10.18720/SPBPU/2/si20-967. — Текст: электронный
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2020
|
Quarter 4
|
October
|
0
|
0
|
1
|
0
|
1
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
3
|
0
|
1
|
0
|
4
|
|
Year 2021
|
Quarter 1
|
January
|
2
|
0
|
0
|
0
|
2
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
1
|
0
|
1
|
0
|
2
|
|
Quarter 2
|
April
|
1
|
0
|
1
|
0
|
2
|
|
May
|
1
|
0
|
0
|
0
|
1
|
|
June
|
1
|
0
|
4
|
0
|
5
|
|
Quarter 3
|
July
|
1
|
0
|
1
|
0
|
2
|
|
August
|
0
|
0
|
1
|
0
|
1
|
|
September
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 4
|
October
|
0
|
0
|
0
|
0
|
0
|
|
November
|
0
|
0
|
0
|
0
|
0
|
|
December
|
0
|
0
|
1
|
0
|
1
|
|
Year 2022
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
0
|
0
|
1
|
0
|
1
|
|
March
|
0
|
0
|
1
|
0
|
1
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
0
|
0
|
|
May
|
2
|
0
|
0
|
0
|
2
|
|
June
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 3
|
July
|
0
|
0
|
1
|
0
|
1
|
|
August
|
0
|
0
|
1
|
0
|
1
|
|
September
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 4
|
October
|
1
|
0
|
0
|
0
|
1
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
3
|
0
|
0
|
0
|
3
|
|
Year 2023
|
Quarter 1
|
January
|
0
|
0
|
0
|
0
|
0
|
|
February
|
1
|
0
|
0
|
0
|
1
|
|
March
|
1
|
0
|
3
|
0
|
4
|
|
Quarter 2
|
April
|
0
|
0
|
1
|
0
|
1
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
June
|
1
|
0
|
1
|
0
|
2
|
|
Quarter 3
|
July
|
5
|
0
|
0
|
0
|
5
|
|
August
|
4
|
0
|
1
|
0
|
5
|
|
September
|
2
|
0
|
0
|
0
|
2
|
|
Quarter 4
|
October
|
3
|
0
|
0
|
0
|
3
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2024
|
Quarter 1
|
January
|
2
|
0
|
0
|
0
|
2
|
|
February
|
4
|
0
|
0
|
0
|
4
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
0
|
0
|
|
Total
|
49
|
0
|
21
|
0
|
70
|
