имеется в продаже
• A compact air filter comes in 1/4 and 3/8 in. pipe sizes.
• A number of commercial models designed specially for shock tube work are now (commercially) available (or are on sale).
• The book is in print (антон. out of print).
Источник:
Русско-английский научно-технический словарь
на Gufo.me
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