General Knowledge · Inventions
डीजल इंजन के रूप में जाने जाने वाले कम्प्रेशन-इग्निशन आंतरिक दहन इंजन (internal combustion engine) के आविष्कारक रुडोल्फ डीजल किस देश से संबंधित थे?
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