Both cement mixer and Concrete mixer are special vehicles for mixing construction materials, and they are different in function and material composition:

功能区别：

Functional differences:

水泥搅拌车主要用于将水泥与其他配料（如石粉、砂子等）进行搅拌，制成水泥糊，以供施工使用。

The cement mixer truck is mainly used to mix cement with other ingredients (such as stone powder, sand, etc.) to produce cement paste for construction use.

混凝土搅拌车用于将水泥、石子、砂子、水和其他掺合料（如外加剂）等原材料进行搅拌，制成混凝土，以供施工使用。

The Concrete mixer is used to mix raw materials such as cement, gravel, sand, water and other admixtures (such as additives) to produce concrete for construction.

材料成分区别：

Differences in material composition:

水泥搅拌车的主要原料是水泥。水泥是一种粘结材料，通过与其它成分混合合理比例后，可以形成坚硬的水泥糊。

The main raw material for cement mixer trucks is cement. Cement is a bonding material that can form a hard cement paste by mixing it with other components in a reasonable proportion.

混凝土搅拌车的主要原料是水泥、石子、砂子、水和其他掺合料。混凝土是一种结构材料，由粗骨料（如石子）、细骨料（如砂子）、水泥、水和外加剂等按一定比例搅拌制成，具有一定的强度和塑性。

The main raw materials of Concrete mixer are cement, gravel, sand, water and other admixtures. Concrete is a structural material made by mixing coarse aggregates (such as stones), fine aggregates (such as sand), cement, water, and admixtures in a certain proportion, and has a certain strength and plasticity.

搅拌方式区别：

Differences in mixing methods:

水泥搅拌车一般采用强制式搅拌方式，即通过搅拌桨等设备进行机械强制搅拌。

Cement mixer trucks generally adopt a forced mixing method, which involves mechanical forced mixing through equipment such as mixing paddles.

混凝土搅拌车可以采用旋转式或强制式搅拌方式，旋转式搅拌主要是靠搅拌罐自身的旋转运动，而强制式搅拌则需要通过搅拌桨等设备进行机械强制搅拌。

The Concrete mixer can adopt the rotary or forced mixing mode. The rotary mixing mainly depends on the rotation of the mixing tank itself, while the forced mixing requires mechanical forced mixing through the mixing paddle and other equipment.

需要注意的是，水泥搅拌车和混凝土搅拌车在实际使用过程中，操作人员应了解并掌握相应的操作规程和安全要求，确保搅拌过程的安全可靠。同时，定期检查和维护车辆及搅拌设备，以保证其正常运行和延长使用寿命。

It should be noted that during the actual use of cement mixers and Concrete mixer, operators should understand and master the corresponding operating procedures and safety requirements to ensure the safety and reliability of the mixing process. At the same time, regularly inspect and maintain vehicles and mixing equipment to ensure their normal operation and extend their service life.