The DF4 (Chinese: 东风4) is a type of diesel–electric locomotive used in the People's Republic of China. It has been in production since 1969 and is still produced as of 2007 by several local companies. It is the most common locomotive in China and is …

东风4型内燃机车（DF4），是 中国铁路 第二代 电传动 内燃机车 的首型机车，也是中国首次设计研制的交—直流电传动内燃机车，该型机车从研制到成熟亦经历了一段坎坷的历程。 1960年代中期，大连机车车辆厂、大连热力机车研究所、 大同机车厂 开始研制240/275系列中速 柴油机，至1969年研制出首台东风4型内燃机车，此后多年一直处于“一边生产、一边改进”的局面。 1974 …

The Dong Feng 4 (Chinese: 东风-4; pinyin: Dōng Fēng Sì; lit. 'East Wind 4') or DF-4 (also known as the CSS-3) is a first-generation two-stage Chinese intercontinental ballistic missile [7] with liquid fuel (Nitric acid / Unsymmetrical dimethylhydrazine).

Chinese Rail DF4 is a kind of diesel locomotive used in China. It was built by Dalian Locomotive & Rolling Stock Works. It has been in production since 1969 and is still produced as of 1984.

The Sifang Locomotive/DLF DF4D (Dongfeng Four) is a six-axle multi-purpose diesel locomotive used in the People's Republic of China.

• DF4 connector designed to streamline defibrillation connections into a single terminal pin and reduce the number of set screws • Cold can programmability provides an additional RV-SVC shock configuration to decouple the can from the shocking vector parameters The CorVue™ thoracic impedance feature measures

The DF4 can be regarded as China's standard main line diesel locomotive. It's more a family of related designs than a single class, with a number of significant variants identified by suffixes; DF4B, DF4DK etc.

东风4型内燃机车，是以240型柴油机为基础研发的我国第二代内燃机车，分为客运型和货运型。 柴油机经改进后定名为DF4A型。 1964年，铁道部向大连厂下大了开发3000-4000马力的新型内燃机车任务。 1965年8月，大连厂成立了由铁道部科学研究院、大连内燃机车研究所、大同机车厂等单位组成的柴油机设计组，首先研发新型机车的动力系统。 经反复比较与选型，决定新型柴 …

Apr 23, 2024 · The DF-4 (Dong Feng-4, CSS-3) is a two-stage, transportable, liquid-fueled intermediate to intercontinental ballistic missile (IRBM/ICBM) that entered service in 1980. It was expected to be decommissioned by 2005, but one brigade remains operational near Lingbao, Henan province. 1.

The Dong Feng 4 (DF-4) is a two-stage, inter-continental ballistic missile (ICBM) with a range of 4,500-7,000 km. [1] The DF-4 employs a DF-3 launcher with an added stage to help power the single 3 MT warhead to inter-continental ranges.