All are slowly moving because the plates float on a denser sem-iliquid mantle, the layer between the crust and Earth's core.

所有板块都在缓慢移动，因为它们漂浮在密度更大的半流体地幔上，也就是地壳和地核之间的那一层。

youdao

Kochia scoparia differed from the substitutes in utride, trichome and stoma under SEM.

扫描电镜下地肤与其他药材的胞果、毛茸和气孔的形态特征有区别。

youdao

Paid Search (SEM): We recommend that in 2011, hoteliers raise their paid search marketing budgets by at least 10%.

付费搜索（SEM）：我们建议酒店管理者在2011年把搜索引擎营销预算最少提高10%。

youdao

and any classes that interest me too. So I'm taking Intro-Sem, Intro Seminar class,

还有其他我感兴趣的课。所以我要选讲座课程，

斯坦福的新生 - SpeakingMax英语口语达人

Our somewhat non-traditional, strategic use of SEM taught us that we could influence the purchase decision through the bid process by driving search down the funnel to known opportunities.

FORBES: Using Search and Social Strategically to Win New Business