花生于无梗伞形花序，有或没有叶在基部。
网络管理信息标准，在802伞形标准中有详细说明，1993年获得批准。
Standard for defining network management information specified in 802 umbrella standards. Approved in 1993.
伞形结构作为一种新型钢结构形式在国内首次开始应用，其施工方法与常规方法不同。
Umbrella-shaped structure, a new steel structure, is firstly used in our country, whose construction technology is different from the usual measures.
认为在高浓度伞形酮溶液中存在着二聚现象。
To our thinking there are dimerisation phenomena in the umbelliferone solutions at high concentration.
这些抗菌植物主要分布在菊科、唇形科、豆科、百合科、蓼科和伞形科。
Many plant species with antimicrobial activities are mainly among the families Compositae, Labiatae, Leguminosae, Liliaceae, Polygonaceae and Umbelliferae.
对伞形科植物积雪草的药理作用进行综述，为积雪草的研究提供基础资料，以便该资源在多领域得到充分利用。
The medicinal effect of Umbrelliferae plant Centella asiatica is summarized. The basic information is supplied for the application in many fields.
在精馏塔进料喷头上方增设伞形档板，可以减少精馏塔带液量。
By the addition of an umbrella-shaped baffle above the feed sprayer in the column, the liquid entrainment from the column can be diminished.
伞形喷雾径向贯穿距离远小于多孔喷雾，喷雾锥角在喷雾早期急剧减小。
However, the radial penetration distance of umbrella spray was much shorter than that of multi hole spray and the umbrella spray Angle decreased rapidly in the early stage of spray development.
通过物种的具体分布情况，得出伞形科在湖南的分布特点；
The distribution features of Umbelliferae in Hunan province is found based on geographic distribution.
在精馏塔进料喷头上方增设伞形挡板，可以减少精馏塔带液量。
By the addition of an umbrella-shaped baffle above the feed sprayer in the column, the liquid entrain...
在精馏塔进料喷头上方增设伞形挡板，可以减少精馏塔带液量。
By the addition of an umbrella-shaped baffle above the feed sprayer in the column, the liquid entrain...
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