vt.[數(shù)]對著；對向；[植]包在葉腋內(nèi)

The area bounded by a chord and the arc of a curve subtended by the chord. 弓形,扇形由弦正對的弦和弧線的弧所成的區(qū)域。

Calyx deeply 5-lobed, subtended by a cuplike involucre of bracteoles. 花萼5深深的裂，被一小苞片的杯狀的總苞被包著。

Capsules subtended by persistent calyx, dehiscent into 2 leathery valves. 蒴果以宿萼被包著，進(jìn)2革質(zhì)的裂爿開裂。

A radian is the angle subtended by an arc of a circle whose length is just equal to the radius. 一弧度就是長度剛好等于半徑的一段圓弧所對的圓心角。

Each individual floret of the spikelet is also subtended by two bracts, the lower being called the lemma and the upper the palea. 每一朵能發(fā)育的花的外面又有兩片鱗片狀的薄片包住，稱為稃片，外面的一片稱外稃，是花基部的苞片，里面的一片稱內(nèi)稃。