The protective housing has a lower part with at least one suitably shaped cavity for holding the metering unit (s) in a stable position and a cap-type upper part.
保护壳体具有下部件和帽类型的上部件，所述下部件具有至少一个被合适成形的凹部，以将配料单元保持在稳定位置。
The protective housing has a lower part with at least one suitably shaped cavity for holding the metering unit (s) in a stable position and a cap-type upper part.
保护壳体具有下部件和帽类型的上部件，所述下部件具有至少一个被合适成形的凹部，以将配料单元保持在稳定位置。
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