operculum

1 The wall a thick, brownish membrane, externally smooth and variously colored, sometimes uniformly light or dark umber, sometimes dark brown below and brownish white above; the operculum brownish white, darkest in the center.

2 The stapes has a large footplate, and its stylus articulates with the quadrate, but no true operculum or opercularis has been described in the Apoda.

3 C—Ampullae placed in the sand which is contained in a box, the spouts of which reach from the opercula into ampullae placed under them.

4 Eulima, foot well developed, with an operculum, animal usually free, but some live in the digestive cavity of Holothurians.

5 In a similar way the spout of the operculum is joined by linen covered with lute to another glass ampulla which receives the distilled aqua.

6 This consists of gills supported on strong arches, the branchial arches, which in the Elasmobranch fishes are from five to seven in number and uncovered with any operculum, or lid.

7 If not preserved in an envelope the calyptra and operculum are very apt to fall off and become lost.

8 Cells in the right parietal operculum operate as we act in response to other's gestures.

当我们对他人的手势作出反应时,起作用的是我们右顶骨的细胞.

9 But, lest the vapours should escape from the ampulla and the operculum in that part where their mouths communicate, they are entirely sealed all round.

10 I do not know if it was the operculum, for my knowledge of such things is small; but I did feel this was the only twelfth birthday which had come to me for many years.

11 He startled periwinkles by tapping them on the operculum, a sort of trapdoor on their shell, and waited.

12 Summit of spire heterostrophic; a projection, the mentum, between head and foot; operculum present.

13 I may here remark that, in most sessile Cirripedes, the outside membrane connecting the operculum and shell, is regularly moulted.

14 Changed "the spout from the opercula extends" to "the spouts from the opercula extend" in the caption to the illustration on page 446.

15 If you do, and must return your good wishes and happy operculum laugh!

如果你做到了, 回报你的一定是美好的祝愿,幸福的笑厣!

16 Supra-anal plate: a triangular sclerite covering the anal cavity above; present in many insects, sometimes in one sex only, often in both: see anal operculum.

17 Foot broad, with two slender posterior appendages; operculum unguiculate.

18 When it approaches, the worms retract, vanish into their homes and slam shut an organ called an operculum — just like a door.

19 Some authors consider them to be jaws; others, opercula.

20 But textural metaphors also activated the parietal operculum, a region of the brain involved in feeling different textures through touch.

1 鳃盖

flap

2 蒴盖

lid

3 厣

lid

4 盖

top CAP tegmentum cover imprint lid case blanket close head door cap flap cowling tectum set put build stop overlay scarf cloak annex affix thatch tegmental casing apply appose

5 盖板

sheathing

6 孢蒴

capsule