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a four valved trumpet can allow the user to get different notes by pressing the different valve just like the 3 valve one
none its open valved
The grasshopper has an open circulatory system which consists of 7 tubular hearts, which are actually valved chambers. These chambers circulate haemolymph, which is the body fluid in a grasshopper's body cavities and appendages.
In anatomy, lymph vessels are thin walled, valved structures that carry lymph.
An aeropulse is another name for a pulsejet, a valved jet engine where combustion occurs in pulses.
the tricuspid valved is loated beetween the right ventricle and the right autrium.
The specifications that Cobra motorcycles hold are as follows 2 stroke, single cylinder, reed valved engines, a liquid cooled cooling system, and Autolite spark plugs to name a few.
Stölzel invented the valve and applied it to natural horns in 1814.
It's a paired, self timing (purkinje fibers), muscular, valved pump.
The chromatic keyed trumpet is a brass instrumentthat, contrary to the traditional valved trumpet, uses keys.
A tuba. They are sometimes referred to as a bass i.e E flat of B flat bass
the slide trombone yes as you have to judge the slide positions for the various notes. There are valved tronbones available