sealed tube

sealed tube

[′sēld ′tüb]
(electronics)
Electron tube which is hermetically sealed.
References in periodicals archive ?
Credulous, click-chasing reporters have broadcast the claims of various Hyperloop entrepreneurs who have run with Musk's idea of shooting pods through a sealed tube at high speeds, and governments around the world have gone right along with it.
In these early fundamental studies, the chemical stability of the refrigerant and lubricant combinations were evaluated using the sealed tube test approach, a method that is widely applied today to understanding HVACR system chemistry.
Others still don't even know what the Hyperloop is In short, it's a hyper-efficient train that runs in a sealed tube. High speeds are possible because of reduced air pressure inside.
HYPERLOOP TT STARTS BUILDING ITS FIRST EUROPEAN TEST TRACK HYPERLOOP is a hyper-efficient train that runs in a sealed tube. High speeds are possible because of reduced air pressure inside.
sealed tube, which is made of UHMW food-grade polyethylene, and creates directional force that conveys material 15 ft high at a 45-degree or 35-degree angle.
Hyperloop is a futuristic surface transport system comprising a sealed tube through which a pod travels free of friction to achieve super high speeds (almost at the speed of sound) using magnetic levitation.
What is the purpose of enclosing the hyperloop in a sealed tube with little air?
propels tubes containing passengers along a sealed tube network using air
* Rugged construction and sealed tube increase portability
I don't know whether John Volpe's idea of compressed air in a sealed tube would work.
For HPLC, four microliters were withdrawn from each sealed tube and injected into the reversed phase [C.sub.18] column (5[mu] packing particle size, 300 mm length by 4.5 mm diameter).