Each of the second ribs is arranged between adjacent ones of the first ribs.

The thickness of the ribs (44) is approximately identical to the thickness of the ribs (46) and the number of the ribs (44) is identical to the number of the ribs (46).

The diaphragm have main ribs and sub ribs, the main ribs are arranged at the location from which the loudspeaker diaphragm are connected to the voice coil, and extend along the radial direction of the diaphragm.

Ribs are provided and the spine extends through apertures in each of the ribs.

Defining the region where the grid-form ribs are provided as the rib region (R1), additional ribs (rb3) are further provided in the rib region (R1).

The multiple barrier members include yielding feathers, yielding ribs, yielding feathered ribs, or interlaced yielding ribs and collars.

The gasket 50 comprises first projecting ribs 51 and second projecting ribs 52 which extend higher than the first ribs 51.

The ribbing is in the form of ribs which are delimited by two parabolas, and there can be any number of ribs.

Vein clearing and vein net of blackcurrant, Gooseberry vein banding

This lattice structure has radial ribs extending from the central structure and has radial ribs interconnecting the radial ribs.

The panel includes locking members, locking ribs, reinforcing ribs, and clips.

The vapor is either sprayed underneath the ribs or between adjacent ribs.

Alternating ridges (142a) intersect with each other.

The guide and stabilising surfaces may include ribs, helical ribs, rings or rollers.

At least some of the ribs (48) have a hydrophobic layer (46) near an end of the ribs (48).