当踩下制动踏板后，从空气压缩机l来的高压气体推动气液总泵4的气活塞，气活塞再推动油活塞。
When the pressure to the brakes, the air compressor from lto promote the gas-liquid high-pressure gas 4 gas piston master cylinder, gas piston and then push the oil piston.
当踩下制动踏板后，从空气压缩机l来的高压气体推动气液总泵4的气活塞，气活塞再推动油活塞。
When the pressure to the brakes, the air compressor from lto promote the gas-liquid high-pressure gas 4 gas piston master cylinder, gas piston and then push the oil piston.
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