查询词典 stems

All leaves or only leaves of lower stems petiolate.

全部叶或只下部茎的叶具叶柄。

Any of several perennial reeds of the genus Phragmites in the grass family, found worldwide in marshes and wetlands and having stems up to nearly6 meters(20 feet) long.

芦苇属禾本科禾本科中的一种芦苇属多年生的芦苇，在世界各地的沼泽和湿地都有发现，有近六米（合20英尺）长的茎

Plants with 1(or 2) lines of hairs on stems or basal margin of leaves and nodes, not pilose or stellate hairy.

植株具1(或2)线状毛在茎或叶和节的基部边缘上的，并非具柔毛的或星状毛。

Stems sparsely pilose and pubescent, or densely rigidly hairy in lower part.

浓密刚硬的茎疏生柔毛和短柔毛，或有毛的在下部。

Twenty-seven compounds were isolated from the methanol extract of the stems of Pinus massoniana by means of chromatographic methods, and their structures were elucidated as 8(14),15-Pimaradien-19-oic acid (1), Pimaric (2), Podocarpic acid (3), 12-Hydroxydehydroabietic acid (4), Dehydroabietic acid (5), 15-Hydroxydehydroabietic (6), 3β-Methoxyserrat-14-en-21-one (7), 3β-Hydroxy- serrat- 14-en-21-one (8), 3β-Methoxyserrat-14-en-21-one-30-al (9),(24R)-Stigmst- 4-ene-3-one (10),β-sitosterol (11),-3-Hydroxy-5-methoxy-stilbene(12), 4-Hydroxy-3- methoxycinnamaldehyde (13),-Ferulic acidtetracosyl ester (14), Alkylferulates (15), Pinocembin (16), Coniferaldehyde (17), Matairesinol (18),-Nortrachelogenin (19), Balanophonin (20), Cedrusin (21),-Pinoresinol (22), Tanegoside (23), 1,2-Bis-(4-hydroxy-3- methoxyphenyl)-propane-1,3-diol (24),(1S*, 2S*)-1-(4- Hydroxyphenyl) glyceri...

同时对马尾松枝条的甲醇提取物利用各种色谱技术进行了分离纯化，并利用现波谱技术鉴定了27个化合物的结构，分别为：8(14)，15-Pimaradien-19-oic acid (1)、海松酸(2)、罗汉松酸(3)、12-羟基脱氢松香酸(4)、脱氢松香酸(5)、15-羟基-脱氢松香酯(6)、3β-甲氧基-锯齿石松-14-烯-21-酮(7)、3β-Hydroxyserrat-14-en-21-one (8)、3β-Methoxyserrat-14-en-21– one-30-al (9)、(24R)-豆甾-4-烯-3-酮(10)、-3-羟基-5-甲氧基-二苯乙烯(12)、4-Hydroxy-3-methoxycinnamaldehyde (13)、-Ferulic acidtetracosyl ester (14)、Alkylferulates (15)、Pinocembin (16)、Coniferaldehyde (17)、罗汉松树脂酚(18)、 Balanophonin (20)、tanegoside (23)、1，2-Bis-(4-hydroxy- 3-methoxyphenyl)-propane- 1，3-diol (24)、(1S*，2S*)- 1-(4-hydroxyphenyl)glycerins (25)、(1R*，2R*)-1-(4-hydroxy- phenyl)gly-cerins (26)和赤松素(27)。

Cauline leaves pinnatisect or pinnatifid, broader; stems pilose with trichomes to 1 mm

茎生叶羽状全裂或者羽状半裂，宽；茎具柔毛的具毛状体到1毫米 2 C。

At least basal leaves dentate, serrate, or pinnatifid; median filaments free; stems glabrous or with straight trichomes.

至少基生叶具牙齿，使成锯齿波，或羽状半裂；中间的花丝离生；茎无毛的或具直的毛状体。

In this thesis, the chemical constituents from the seeds of Pinus koraiensis and the stems of pinus massoniana were investigated.

为了进一步研究松科植物的化学成分，本论文对红松松子及马尾松枝条的化学成分进行了系统的植物化学分析。

The biological active substances of the stems of pitaya were introduced in this paper.

综述了火龙果茎的活性成分及各种活性成分的应用现状，同时还介绍了火龙果茎的开发应用前景。

Petals yellow; flowers ca. 7 mm; middle outer sepal and apical appendage of keel pocketlike; stems without leaf scars and lenticels; leaf blade membranous, elliptic-lanceolate, ca.

花瓣黄色花约7毫米；中间外部萼片和龙骨瓣顶端附属物口袋状；没有叶痕和皮孔的茎；叶片膜质，椭圆状披针形，约3厘米宽，先端渐尖。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。