延长时间

The cell wall of sclerenchyma in ROL barrier was significantly thickened in conventional lowland rice (Yangdao 6) with the increase of PEG concentration, but upland rice (Zhonghan 3) was not sensitive to low PEG concentration. The thickening of ROL barrier obviously became stronger at 50 g·L-1 and higher concentrations. Besides, suberisation of cell walls increased significantly with the time extension.

随PEG浓度的升高，水稻(扬稻6号)根的ROL屏障厚壁细胞胞壁宽度明显增加；旱稻(中旱3号)对低浓度PEG胁迫不敏感，当PEG浓度达50 g·L-1以上时，ROL屏障厚壁细胞才表现出明显加厚的趋势，且随PEG胁迫时间的延长，厚壁细胞栓质化程度变高。

Healthy spikes of high-resistant varieties had thicker cell wall and tissue of cortical sclerenchyma, more number of cortical sclerenchyma layers, more number of fibrovascular bundles, smaller area of green subcutaneous tissue in rachis, and theses differences, except number of fibrovascular bundles, enlarged over time. Considering inoculated spikes, cell wall and tissue layers of cortical sclerenchyma displayed different, and to how much extent the relationship between this difference and anti-extension ability of variety had not determined. 6. On the analysis of agronomical characters and molecular marking technology, more than 30 alien anti-Gibberella wheat materials and two mutants coming from this experiment were evaluated their hereditary multiplicity.

实验结果还证明，高抗品种和感病品种的穗轴组织结构确实存在一定差异，在健康穗中，主要表现在高抗品种的皮层厚壁细胞壁和皮层厚壁组织较厚，皮层厚壁细胞层数较多，维管束数目较多，穗轴表皮下绿色组织面积较小，抗、感品种间的差异达显著水平，随发育时间延长，高抗品种的皮层厚壁细胞壁厚度、厚壁组织厚度和厚壁细胞层数增加的幅度较大；在病穗中，主要表现在高抗品种的皮层厚壁组织细胞层数和厚壁细胞壁厚度增加的幅度较大。

Results The anterior spiracle, posterior spiracle and cephalopharyngeal skeleton regularly changed with daily larval growth. The three indexes including the sclerotizes area of pharyngeal sclerite, the average optical density of pharyngeal sclerite and the posterior spiracle could be used as the ideal indexes of larvae age.

结果 丝光绿蝇幼虫前气门、后气门、头咽骨均随着时间的延长发生规律性变化，幼虫后气门平均光密度、咽骨骨化面积及其平均光密度这3项指标是推断幼虫日龄较理想的指标。

With the duration of infection,scolex began todifferentiate and possessed suckers and hooks.

随着猪囊尾蚴体内发育时间的延长，头节逐渐分化，出现吸盘和小钩。

If you have to work longer hours and scrape by each month just to afford a house … is it really worth it?

如果您有延长工作时间和度小月每月只买不起房子。。。是不是真的值得吗？

RESULTS: Persistent positive expression of vascular endothelial growth factor was seen in the epidermal cells and sebaceous gland cells.

阳性细胞数量随损伤时间的延长而增多，于伤后96 h达峰值，伤后1周和2周仍见少量巨噬细胞和成纤维细胞表达阳性。

The secondary electron emission avalanche model is the most dominant theory of surface flashover in vacuum.

提高晶化温度或延长晶化时间也能在一定程度上提高其表面耐电性能，但是这样做会降低其可加工性能。

At the experimental concentrations tested (00 u.g I/1), selenite and selenate did not significantly affect the accumulation of either mercury species by the green mussels. In contrast, selenomethionine significantly inhibited the uptake of MeHg and enhanced the uptake of Hgy the mussels, but it did not affect the assimilation from the ingested diatoms. We further examined the influence of tissue body burden of Se in the green mussels following pre-exposure to selenite and selenomethionine on the accumulation of Hg2 and MeHg from the dietary and aqueous phases.

实验结果表明，在实验设定的浓度范围内(00滩。L-l)，同时暴露，s犷和s产均不能显著影响翡翠贻贝刘榕解态和颗粒态H广和MeHg的累积。seMe育游显著抑制翡翠贻贝对溶解态MeHg的吸收，提高对溶解态H犷+的吸收，但不能影响翡翠贻贝对颗粒态Hg的同化效率；通过投喂载反少或女N贻的硅藻，对翡翠贻贝进行预暴露，组织Se的浓度随预暴露时间延长而增加。

Theoretical analysis and experimental results indicate that reaction of zinc with selenide as fully as possible under H2-O2 flame at about 1500℃ is the key step in the synthesis process and prolonging holding time at high temperature, which makes the diffuse reaction adequately take place, is favourable to obtain stoichiometry ZnSe polycrystalline.

理论分析和实验研究均表明：前期H2-O2焰下高温灼烧(~1500℃)使Zn和Se充分反应，是合成工艺的关键；延长后期恒温时间（不少于2周），使扩散反应进行完全，有利于获得更接近化学计量比的ZnSe多晶料。

Howevr,the time of plantlet induction was delayed and the percentage of responding anthers as well as the number of plantlets induced per anther significantly decreased after 3kR of 60Co γ-ray radiation which was considered as a semilethal exposure.

结果表明，1kR左右的γ射线对花粉的出苗率有促进效应；3kR时，花药出苗时间延长，出苗花药率和花药产苗率明显降低，视为半致死剂量；6kR时，虽有部分花药可以出苗，但花药产苗率极低。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。