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TRACK DEPRESSION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-06-16

English

Subject field(s)
  • Tracks and Roadways (Rail Transport)
  • Signalling (Rail Transport)
CONT

BT12 is the signal' s number and corresponds to the number of the lever in the signalbox. The white diamond on the post tells the driver that the signal is exempt from Rule 55(regarding trains standing on a running line) as track circuiting(or an electrical depression bar) is provided.

French

Domaine(s)
  • Voies ferrées
  • Signalisation (Transport par rail)

Spanish

Save record 1

Record 2 1992-12-31

English

Subject field(s)
  • Atmospheric Physics
DEF

The path followed by a depression during its life history.

Key term(s)
  • depression track

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Trajectoire suivie par une dépression pendant sa durée de vie.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Recorrido que sigue una depresión mientras dura.

Save record 2

Record 3 1977-06-21

English

Subject field(s)
  • Paleontology
OBS

[The] Subfamily Disciniscinae [is composed of] Discinid [brachiopods] with [the] track of [the] pedicle opening in [a] broad depression of [the] pedicle valve, [the] track [is] partially closed anteriorly by [a] listrium, but [the] pedicle tube [is] not developed; [the] pedicle opening [is] lanceolate to suboval, separated from [the] posterior margin of [the] valve only by [a] narrow band of [the] periostracum. [The] Ventral and dorsal "vascula lateralia" [are] bifurcate, [the] dorsal "vascula media" present. ?Carb., ?Trias., L. Jur.-Rec.

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes inarticulés de la] Sous-famille des Disciniscinae (...) [ont un] Pédoncule sortant de la valve ventrale antéro-postérieurement, immédiatement sous le sommet. Fossile et actuel.

Spanish

Save record 3

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