biconvex

Of biconcave of computer clavier biconvex sheltered evil people and practices the most easily, cleanness rises special inconvenience.
电脑键盘凸凸凹凹的最轻易藏污纳垢了，清洁起来非常不方便。
Back of upper lemma facing away from rachis; spikelets thinly biconvex, oblong-elliptic.
在上面外稃后面面对离开轴；稀疏的小穗双凸，长圆状椭圆形。
Stigmas capitate. achenes included in persistent perianth, dark brown, dull, nearly orbicular, biconvex or trigonous, ca. 3 mm.
柱头头状瘦果在宿存花被内藏，暗褐色，黯淡，近圆形，两面凸或者三棱，约3毫米。
The second lens group (G2) is provided with at least one biconvex lens group (L21).
第2透镜组（G2），至少具有1片双凸形状的透镜组（L21）。
Convex on both sides; biconvex. Used of a lens.
Achenes biconvex, ovoid, margin broadly winged.
Stigmas capitate. achenes included in persistent perianth, black, opaque, ovoid, trigonous or biconvex, 1-2 mm, finely glandular or pitted.
柱头头状瘦果在宿存花被内藏，黑色，不透明，卵圆形，三棱或者两面凸，1-2毫米，细腺或者具洼点。
Stigmas capitate. achenes black, opaque, nearly orbicular, biconvex, ca. 1 mm in diam.
柱头头状瘦果黑色，不透明，近圆形，两面凸，直径约1毫米，浓密使相斗。
Stigmas capitate. achenes included in persistent perianth, black-brown, shiny, broadly ovoid, trigonous or biconvex, 1. 5-2 mm, smooth.
柱头头状瘦果在宿存花被内藏，黑棕色，发亮，宽卵形，三棱或者两面凸，1.5-2毫米，光滑。
Stigmas capitate. achenes yellow-brown, slightly shiny, broadly ovoid, biconvex, ca. 1. 5 mm.
柱头头状瘦果黄褐色，稍发亮，宽卵形，两面凸，大约1.5毫米。