Smith direct transfusion pump, rotary type with hoses and needles. Designed in Melbourne by Julian Smith in 1940 and made around that same time. Prototype.
A control system for a new diesel rotary distributor pump is here introduced.
这里介绍一种新型柴油机回转式分配泵的控制系统。
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The power produced by BLDC motor and pump is kind used by rotary steering drilling instrument, which has the characteristic of stabilization and easy controling.