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用于混凝土搅拌机，手动泵可实现应急操作。
Application of Concrete mixer, with manual pump for emergency.
youdao
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吊车在头顶转动，翻斗车与混凝土搅拌机在路上小心谨慎地行使。
Cranes turn overhead as dump trucks and cement mixers nose onto the road.
youdao
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吊车在头顶转动，翻斗车与混凝土搅拌机在路上小心谨慎地行使。
Cranes turn overhead as dump trucks and cement mixers nose onto the road.
youdao