查询词典 absent

Seed usually 1; seed coat membranous; caruncle absent; endosperm absent.

通常的种子1；种皮膜质；种阜无；无胚乳。

The method involves exposing the cells to a compound having the formula I in which: w is a nucleic acid x is a non-amino acid or non-peptide nucleic acid binding group y is a spacer having a chain length equivalent to 1-30 carbon-carbon single covalent bonds or is absent R4 is H or halogen or CH2O-R3; and R1, R2 and R3 are the same or different and are either hydrogen, methyl, ethyl, alkyl, alkenyl, hydroxylated alkyl, hydroxylated alkenyl groups or ether containing alkyl, alkenyl, hydroxylated alkyl or hydroxylated alkenyl groups optionally being an acyl group having a carbon chain length equivalent to 3-24 carbon atoms saturated or unsaturated, with the proviso that at least one of R1, R2 or R3 includes a group having a carbon chain of 3-24 carbon atoms saturated or unsaturated, or to a compound having the formula II in which: w is a nucleic acid x is a non-amino acid or non-peptide nucleic acid binding group y is a space having a chain length equivalent to 1-30 carbon-carbon single covalent bonds or is absent, R5 is alkyl, alkenyl, hydroxylated alkyl, hydroxylated alkenyl group or ether containing alkyl, alkenyl, hydroxylated alkyl or hydroxylated alkenyl group optionally being an acyl group having a carbon chain length equivalent to 3-24 carbon atoms saturated or unsaturated, with the proviso that R5 includes a group having a carbon chain of 3-24 carbon atoms saturated or unsaturated.

该方法包括使细胞暴露于具有式的化合物，在式中：w是核酸，x是非氨基酸或者非肽核酸结合基团，y是具有等于1―30个碳―碳单共价键的链长的间隔基或者不存在，R4是H或者卤素或者CH2O－R3；R1、R2和R3是相同的或者不同的并且是氢、甲基、乙基、烷基、链烯基、羟基化烷基、羟基化链烯基或者包含烷基、链烯基、羟基化烷基或羟基化链烯基的醚，任选地是来源于具有等于3―24个碳原子的碳链长的饱和或不饱和脂肪酸的酰基，其条件是R1、R2或者R3的至少一个包括具有3―24个碳原子的饱和或不饱和碳链的基团，或者使细胞暴露于具有式的化合物，在式中：w是核酸，x是非氨基酸或者非肽核酸结合基团，y是具有等于1―30个碳―碳单共价键的链长的间隔基或者不存在，R5是烷基、链烯基、羟基化烷基、羟基化链烯基或者包含烷基、链烯基、羟基化烷基或羟基化链烯基的醚，任选地是具有等于3―24个碳原子的饱和或不饱和碳链的链长的酰基，其条件是R5包括具有3―24个碳原子的饱和或不饱和碳链的基团。

Flowers small to medium-sized, bracteate and often bracteolate, bisexual or unisexual, actinomorphic or rarely zygomorphic, hypogynous to epigynous, floral cup shallow to urn-shaped, sometimes absent; sepals 4 or 5(–10), sometimes absent, imbricate, usually persistent; petals absent or 4 or 5, yellow, white, greenish or red, often ribbonlike and circinate in bud, caducous; stamens 4, 5, or many, free, rarely arranged in 2 whorls with the inner whorl staminodal, development of polyandrous androecia centripetal or centrifugal; anthers basifixed, thecae mostly bisporangiate, each opening by two valves or a simple longitudinal slit, or monosporangiate and opening by a single valve (Exbucklandia, Hamamelis and the genera of the S hemisphere), connective protruding; disk scales sometimes present between stamens and carpels.

花小对中型，具苞片和通常，萼片4或5(-10)，有时无，覆瓦状，通常宿存；花瓣无或者4-5，黄色，白色，带绿色或者红，通常在芽期带状的并且拳卷，早落；雄蕊4，5，或者很多，离生，很少2轮生并且退化雄蕊内部轮生，多雄蕊的雄蕊群向心或离花药基着大多为的囊bisporangiate，以二裂爿或一单纵裂缝每开阔的，花盘鳞片有时片在雄蕊和心皮之间存在。

Flowers axillary or terminal on branchlets, decussate or whorled; peduncle absent; pedicel short to nearly absent.

在小枝，交互对生的或轮生上的花腋生或顶生；花序梗无花梗短到近无。

Thus for every bishop absent there is absent an authentic witness of the Faith as it is in his diocese.

因此，每一个主教缺席的缺席是有真实的见证的信念，因为这是在他的教区。

Results Telethonin protein was absent in the dystrophic muscles of five patients. Interestingly, the processing and maturation of myostatin protein were inhibited in the five telethonin-absent patients, which suggested that telethonin was likely involved in the maturation of myostatin.

结果 发现在一些肌营养不良患者中Telethonin蛋白表达缺失，而在这些患者的肌肉组织中MSTN蛋白表达正常但存在加工障碍；此结果提示，Telethonin蛋白可能参与MSTN蛋白的加工成熟过程。

Diffusion problem of a predator-prey model with Holling typeⅡfunctional capturing function is studied. Stability condition is obtained when diffusion is absent, and the effect on stability of positive equilibrium is studied when diffusion is present. In the end, the problem of existence of limit cycle is proved in the first quadrant when diffusion is absent.

针对一类具有HollingⅡ型功能捕获函数的捕食－食饵模型的扩散问题进行了研究，得到了无扩散时正平衡点的稳定条件，以及扩散存在时对正平衡点稳定性产生的影响，最后证明了无扩散时系统在第一象限存在极限环的问题。

Absent// She noted the absent fixity on her face.

她注意到了他那茫然的目光。

Male flowers small, yellow, fascicled in axils of bracts; calyx membranous, cup-shaped, shallowly 2- or 3-lobed or -dentate; petals absent; disk absent; stamens 2-3; filaments free; anthers 2-celled, longitudinally dehiscent; pistillode absent.

雄花小，变黄，在苞片腋内簇生；花萼膜质，杯状的，2-3浅裂的或具牙齿花瓣无；花盘无；雄蕊2-3；花丝离生花药2室，纵向开裂；无退化雌蕊。

Absent without leave means to be away without permission or explanation.

Absent without leave的意思为擅离职守，原本是一战时期的军事用语，后在日常生活中的到流传。

If Pentium 4 used to be the master of all games built on Quake3 engine, now the situation has changed completely.

如果奔腾4使用的是掌握所有游戏建立在求苛刻的发动机，现在的情况已完全改变。

No, this is not what we mean by framing, although the principle is the same.

不，这不是我们所讲的框架的含义，尽管法则是一样的。