查询词典 pairs

Multicarrier modulation in data transmission is discussed in the fourth chapter. The performance of MCM and single tone modulation over twisted pairs is compared. Discrete multitone modulation is used in ADSL system. A new variable constellation TCM method is proposed, It can adapt to the subchannel capacity automatically. The simulation results prove that this method is quite effective.

第四章讨论了多载波调制技术在数据传输中的应用，针对市话信道的具体传输环境，比较了单载波调制与多载波调制的性能；针对ADSL传输的目标，采用离散多频音DMT技术，独立提出一种新的星座图变化的格状码方案VCTCM，能动态地适应不同子信道的传输能力，给出的计算机仿真结果表明该方案有较好的效果。

Leaf blade obtuse to subcordate at base, abaxially glabrous, secondary veins 3 or 4 pairs; twigs terete; rachis and pedicels glabrous.

叶片钝的到近心形在基部，背面无毛，次脉3或4 对；小枝圆柱状轴和花梗无毛。 21 Gaultheria leucocarpa 白果白珠

We can't never understand the pairs the had been subjected......

我们永远无法理解他所遭受的苦楚。。。。。。

From special to normal, the problem of constructing a Jacobi matrix with a prescribed principle submatrix and two ordered defective eigen-pairs has been solved gradually in this paper.

遵循从特殊到一般的原则，本文逐步解决了由给定一个顺序主子阵和两个有序缺损特征对构造Jacobi矩阵的问题。

Among the 187 pairs of SSR primers, 73 (39%) were polymorphic between the two parents and were used to tag submergence in the F2 population.

在SSR分析中， 187对SSR引物中有73对引物在两亲本间有明显的差异，差异率为39%。

Leaves opposite, rarely subopposite, petiolate, entire, papery, with pinnate veins, with tendrils between leaf pairs.

叶对生，很少近对生，具叶柄，全缘，纸质，具羽状的脉，在叶对之间的具卷须。

Leaves alternate, sometimes subopposite or a few fascicled on short shoots; petiole 2-4 mm; leaf blade ovate, or elliptic to lanceolate, 3-5 × 1.5-2 cm, leathery, both surfaces glabrous, lateral veins 3 or 4 pairs, base cuneate, slightly decurrent, apex obtuse.

叶互生，有时近对生或一很少簇生在短茎上；叶柄2-4毫米；叶片卵形，或椭圆形到披针形， 3-5 * 1.5-2 厘米，革质，两面无毛，侧脉3或4 对，基部楔形，稍下延，先端钝。

Petiole 2–4 mm, thick, densely brown hirsute; leaf blade elliptic, elliptic-lanceolate, or subovate, 3–7.5 × 1.5–3 cm, papery, lateral veins 5 or 6 pairs, abaxially brown hirsute, gradually glabrate, adaxially sparsely pilose when young, glabrescent, base broadly cuneate or subrounded, margin sparsely sharply serrate, apex acuminate to caudate, sometimes 3-lobed. Inflorescences umbellate or simple corymbose, 0.8–1.5 × 0.8–2 cm, nearly without peduncle, 3–8-flowered; bracts subulate, 4–5 mm, slightly pubescent.

叶柄2-4毫米，厚，浓密棕色具粗毛；叶片椭圆形，椭圆状披针形，或近卵形， 3-7.5 * 1.5-3 厘米，纸质，侧脉5或6对，背面棕色多毛，逐渐脱毛，正面幼时疏生柔毛，后脱落，基部宽楔形或近圆形，花序伞形的或单的伞房状， 0.8-1.5 * 0.8-2 厘米，近没有花序梗，花；钻形的苞片，4-5毫米，稍具短柔毛。

Stamens 4, adnate to corolla tube near base or near middle, included; anthers basifixed, coherent in pairs at apex, thecae subparallel, confluent or not at apex, dehiscing longitudinally; connective not projecting; staminode 1 or absent, adnate to adaxial side of corolla tube.

雄蕊4，贴生于花冠筒近基部或近中部，包括；花药基着，连着成对在先端，近平行，汇合的囊或而不是在先端，纵向开裂；药隔不凸出；退化雄蕊1或无，贴生于花冠筒的正面的边。

Petiole 5-7 mm, pubescent; leaf blade dark or purple-green, glossy adaxially, light green abaxially, orbicular or elliptic to oblong, sometimes obovate, 5-9 × 2.8-6 cm, leathery, both surfaces glabrous, but sometimes puberulous along margin, base broadly cuneate, apex acuminate or acute, apiculate; lateral veins 15-20 pairs, more conspicuous abaxially, veins and veinlets slender, subparallel, obscure.

叶柄5-7毫米，具短柔毛；叶片深色的或紫色绿色，正面有光泽，淡绿背面，圆形的或椭圆形到长圆形，有时倒卵形， 5-9 * 2.8-6 厘米，革质，两面无毛，但是有时被微柔毛的沿边缘，基部宽楔形，先端渐尖或锐尖的，具细尖；侧脉15-20 对，更多的背面明显，脉和细脉纤细，近平行，不明显。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。