- métac?ne
專業(yè)辭典
n.m
【生物學(xué)】后尖
- metacolloide: métacollo?demétacollo?dem.變膠體
- metacinesie: métacinésiemétacinésief.中期分裂
- metaconide: métaconidemétaconidem.下后尖
- metacinabre: métacinabremétacinabrem.黑辰砂
- metacontraste: métacontrastemétacontrastem.減敏襯度
metacone中文什么意思
- métac?ne
專業(yè)辭典
n.m
【生物學(xué)】后尖
例句與用法
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- The upper molars have four cusps : paracone, metacone, protocone, and hypocone.
- The stylar shelf, the outer area of the tooth, is broad, particularly at the metacone cusp.
- The main cusp is protocone; among the other two cusps, the paracone is higher but the metacone larger.
- No crest connects the protocone to the metacone, but there is a cingulum at the back margin of the tooth.
- Both genera have zalambdodont ( V-shaped crests ) and transversely elongated with the paracone and metacone ( cusp ) appressed or connated.
- On the molars, the paracone and metacone are separated and not connate as in " Bemalamdba " and " Harpyodus ".
- They are named after their locations, e . g . a paraconule is located between a paracone and a metacone, a hypoconulid is located between a hypoconid and an entoconid.
- Equipment as built included load sensing " Metacone " air suspension, rheostatic braking, hydraulic parking brake, pneumatic camshaft control by GEC and Brush DC motors of type LT117, with each Dm car having four motors.
- The smaller hypoconulid cusp is present towards the inner side of the tooth, and the hypoconid and hypoconulid are connected by a cutting edge which is suggestive of the presence of a metacone cusp on the upper molars.
- Specific synapomorphies include a strong precingulum and postcingulum on the upper mollars-which are extended lingually but do not meet around the paracone-three cusps on the lower stylar shelf, an absent metacone and rectangular lower mollars.