The diverse alfalfa varieties had obvious difference on stem structure.

不同苜蓿品种间枝条结构差异明显。

youdao

Stem structure 1) stem - inside screw bronze multi-turn valves for the most common and preferred structure.

阀杆结构1） 明杆-内螺纹结构对于青铜多回转阀门来说是最通用、首选的结构形式。

youdao

Valve structure that is buried, extended stem structure, making it suitable for laying of underground pipes installed in places.

球阀埋地结构即，加长阀杆结构，使其适用于管线埋地铺设安装的场所。

youdao

The civil-service unions are equally clever in arguing that the abuses stem from the pay structure: the ministries like to keep basic pay rates low in order to minimise their pension contributions and other social charges.

ECONOMIST: The French state