无脉

Leaves often on upper stems or branches, glabrous; stipules deciduous, ovate, very small; petiole 1.5-12 mm; leaf blade narrowly oblong, elliptic, or oblanceolate to oblong-lanceolate, 8-20 × 2.2-4.5 cm, membranous or herbaceous, lateral veins 5-8 pairs, base attenuate or narrowly cuneate, margin crenate-serrate or undulate distally, apex acuminate; cystoliths slightly conspicuous or inconspicuous.

叶通常在上面茎或分枝上，无毛；托叶脱落，卵形，很小；叶柄1.5-12毫米；叶片狭长圆形，椭圆形，或倒披针形到长圆状披针形， 8-20 * 2.2-4.5 上部的厘米，膜质或草质，侧脉5-8 对，基部渐狭或狭楔形，边缘具圆齿有锯齿或波状，先端渐尖；钟乳体稍明显或不明显。

Then,the left external carotid artery of 40 adult New Zealand White rabbits were ligated,which reduced the pulsatile shear stress of left common carotid significantly (for example, mean=21.16 ± 7.17 vs 3.13±2.28 dynes/cm2, p=2.176E-21)and did not change the pulsatile shear stress of right common carotid significantly.

结果左颈外动脉结扎后即刻兔的左颈总动脉形成脉动低切应力以τ_(mean为例，从21.16±7.17dynes/cm~2降至3.13±2.28dynes/cm~2，p=2.176E-21，并一直持续至结扎12周后；而右颈总动脉脉动切应力始终无显著变化。

The effed Of three-dimensional perturbed velocities and three-dimensional perturbed current densities on the beam-wave interaction of plasma-filled dielectric Cherenkov maser is analysed by use of the self-consistent linear field theory without considering the effect Of the longitudinal guided magnetic field.The dispersion relation and the Simultaneous condition of the beam-wave interaction are derived. It is clearly shown that the instability of the interaction results from the coupling of the TM mode in t...

在无引导磁场的作用下，利用自洽线性场理论，分析了电子的三维扰动速度和三维扰动电流密度对填充等离子体的介质切伦可夫脉塞注波互作用的影响，导出了注波互作用的色散关系和同步条件，所得关系清楚地表明，其工作用不稳定性是由填充等离子体的介质筒慢波波导中的TM模与电子注模通过电子注耦合所致，并求得了电子注引起的频偏和波的增长率。

Using time frequency analysis and image processing the modulation of linear frequency-modulated signal is analyzed and using relatively non-ambiguity phase revaluation technique, the modulation identification of phase-coded signal is also studied.

脉内调制特征中采用了时频分析方法和图像处理的方法分析了线性调频信号，采用相对相位无模糊的方法分析了相位编码信号。

Second and sometimes 1st year's branchlets with conspicuous lenticels; leaf blade abaxially glabrous except grayish pubescent to densely slightly crisped villous along veins

第二和有时加明显皮孔的1年的小枝；叶片背面除对浓密稍皱波状的具长柔毛沿脉的浅灰色的短柔毛之外无毛 21 H。 xanthoneura 挂苦绣球

Palea to 2.7 cm, involute, papery, many veined, apex bifid; lodicules absent.

Palea 给2.7厘米，纷乱，似纸，很多脉，2裂的顶；鳞被无。

The two species are similar in stomatal character and in the absence of accessory transfusion tissue, but they are very different in stomatal distribution, pinna venation pattern and pinna marginal shape, presence or absence of mucilage canal, differentiation of palisade and spongy parenchyma, characteristics of girder parenchyma and epidermal anticlinal wall.

两个属在气孔器特征与不具副传输组织方面极为相似，而在气孔的分布、羽片脉序式样与叶缘形态、粘液道的有无、海绵组织与栅栏组织的分化、工字厚壁组织与表皮细胞垂周壁特征方面则有较大的差异。

Methods Leucorrhoea specimens in vaginae fornix from 1220 patients with gential tract inflammation and 183 asymptomatic cases were collected and detected for Ureaplasma urealyticum and Mycoplasma hominis. Their drug resistance to 9 kinds of antibiotics was monitored.

对1220例妇科炎症患者和183例无症状者按标准操作收集其阴道弯窿部白带标本，立即进行解脉支原体和人型支原体的检测并监测其对9种抗菌药物的耐药性。

Different from other two plants, there are red materials in upper epidermis of leaves of the A. mono living in Baicheng and Changchun. The red materials may relate to the secretion of salt. In A. mono living in Baicheng ,there exist palisade parenchyma with 2 layers cells.

白城地区的色木槭叶片主脉无花环状的韧皮纤维，白城和长春色木槭均有红色物质从叶片上表皮溢出，与另两种植物不同，这种物质可能与盐分的分泌有关，白城地区的色木槭叶的栅栏组织由两层细胞构成，而长春的色木槭则为一层栅栏组织。

Samaras ca. 1.5 cm with wing, glabrous; wings spreading at obtuse angle; nutlets elliptic-convex, only slightly veined with thin, weak wall.

翅果包括翅约1.5厘米，无毛；翅张开为钝角小坚果椭圆凸面，只是稍具脉，带薄、弱的壁。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。