常見(jiàn)例句雙語(yǔ)例句Companion cells arranse in a row or single cell as long as the sieve tube member.伴胞為與篩管分等長(zhǎng)的一列或單個(gè)細(xì)胞。The utility model relates to a corundum sieve tube used in the field of oil field and oil well production.本實(shí)用新型涉及油田油井開(kāi)采領(lǐng)域中用到的一種剛玉篩管。ip.comThe sieve tube elements of the secondary phloem were relatively shorter, with simple sieve plates in the slightly inclined to almost horizontal end walls.韌皮部篩管分子相對(duì)較短，其端壁水平或略傾斜，具單篩板，缺少纖維。 返回 sieve tube