Sentence examples for pair of valves from inspiring English sources

Last week mission managers decided to postpone an engine firing planned for Wednesday after a pair of valves in the spacecraft's propulsion system did not work as expected.

In particular, the pair of valves utilizes a simple centered stopper-flap based configuration, which lies near each other forming restricted fluidic path to direct fluidic flow efficiently.

The hypothesis proposes that the first brachiopod converted its shells into a pair of valves by folding the rear part of its body under its front.

It was suggested in 2003 that brachiopods had evolved from an ancestor similar to Halkieria, a slug-like Cambrian animal with "chain mail" on its back and a shell at the front and rear end; it was thought that the ancestral brachiopod converted its shells into a pair of valves by folding the rear part of its body under its front.

Abdomen well preserved, covered by a setal vestiture; 7 segments discernible and subterminal ovipositor prominent and robust, curved, with two pairs of valves present.

BBC Radio 4 long wave, which transmits on the 198 kilohertz frequency, relies on ageing transmitter equipment that uses a pair of the valves – no longer manufactured – to function.

The actual solids holdup measured by a pair of pinch valves and the apparent solids holdup calculated from the pressure gradients are also compared for different operating conditions.

In the fully developed region, the apparent solids holdup calculated from the pressure gradient agreed well with the actual solids holdup measured by a pair of pinch valves under not very high gas velocities, but was underestimated at higher gas velocities due to the increased wall friction loss.

Switching from normal air to pure nitrogen (N2), i.e., anoxia, utilized a pair of solenoid valves controlled by the data acquisition software and hardware (Figure S1).

Specific testing between pairs of static valves indicated differences between all valves for the 2,000, 800 and 200 HU thresholds (Table  1, p < 0.001).

Of 93 well-preserved, articulated pairs of Bouchardia valves recovered from 5 dense aggregations before the 41-Ma cooling event, and 116 pairs from 5 dense aggregations after the event, none (0%) had a borehole.