伸长

We studied the optimum medium and hormone combination of callus induction from cotyledons, subculture of callus, shoot regeneration from callus, shoot-extension induction, root induction and identified the chromosome number of the plantlet. The results showed that: MS+2,4-D 2.0mg/L+KT 0.5mg/L, MS＋2,4-D 2.5mg/L＋KT 0.5mg/L, MS+2,4-D 0+KT 1.0mg/L, MS+KT 0.5 mg/L and basal MS medium. One plantlet among twenty two was determined as a tetraploidy based on the plant morphology, observation of the leaf stoma and chromosome number of the root, other two plantlets represented morphological variation.

结果表明，诱导章丘大葱子叶产生愈伤组织、愈伤组织的继代培养、愈伤组织芽分化、芽点的伸长及诱导生根的最佳培养基及激素配比分别为：MS+2，4-D 2.0mg/L+KT 0.5mg/L、MS＋2，4-D 2.5mg/L＋KT 0.5mg/L、MS+2，4-D 0+KT 1.0mg/L、MS+KT 0.5mg/L和MS基本培养基；试管苗经驯化移栽后，共有22株成活，成活率为92%，对成活的再生植株进行形态学、叶片气孔及根尖染色体鉴定表明，共有3株发生变异，其中2株为外部形态上的变异，而另一株为染色体的加倍变异。

When airborne, the front wheels pop out about 30 inches on their suspensions to absorb the shock of a 30-foot fall.

当蝙蝠车跳跃后着陆的时候，前轮的悬挂会使前轮伸长约30英寸，这样就能在下落的时候吸收车辆从30英尺的空中落下时产生的冲击。

The upper and lower interhemisperic silk thread of paper elongation, but by adjusting the lining or other way to make overprinter accurate.

而纵丝缕纸张上下伸长较多，但通过调整包衬或其他方法可使套印准确。

However, very little is known about the molecular mechanism of tiller bud formation and outgrowth in rice.

但是，对于分蘖芽形成和伸长的分子机理却了解甚少。

The further correlative analysis showed that the main factor of deep-seeding tolerance in maize was the significant elongation of mesocotyl.

进一步相关分析表明，玉米耐深播的主要原因是其中胚轴显著伸长。

Secondly, using the transformation of stretched variable, the first boundary layer corrective term near the left endpoint is constructed which possesses exponential attenuation behavior.

其次，利用伸长变量，在左端点附近构造问题解的第一边界层校正项。

As a result of heat and moisture balance, too dry corrugrted in a studyon double-sided corrugrted machine, because vertical moisture has been fixed, so the formation of transverse elongation, little bubbly surface.

由于热和水份的不平衡，过于干燥的瓦楞纸板在双面瓦楞纸板机出口处吸潮，因纵向已被固定，所以横向伸长，表面形成小泡状。

Parallel strings steel roof trass of light roofing ; elastic elongation ; crane load ; wind load ; optimal design

轻型屋面平行弦钢屋架；弹性伸长；吊车荷载；风荷载；优化设计

The half-seed method system of Agrobacterium-mediated soybean transformation was researched applying healthy explants rates, resistant tufty shoots and elongated shoots as targets. Explants of soybean grow well in environments with abundant light and oxygen in cocultivation.

以农杆菌介导的半种法大豆遗传转化系统为基础，对目的基因进行转化；以健康外植体获得率、抗性丛生芽获得率和抗性芽伸长比率为指标，对转化系统条件进行优化。

Achenes flattened, tumidly rimmed, with slightly elongate

瘦果扁平，具肿胀边缘框，宿存花柱稍伸长，尾状。

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。