多粒的

The peak of oviposition was in 6～9d of the female's emergenc e on broad bean.

在相同 条件下，测得每对成虫在蚕豆苗上的最多产卵量及平均产卵量分别是316粒、214.5粒；产卵的高峰期是羽化的6～9d。

The conductibility and mechanical properties of SGB/VMQ composites were good when fillers of SGB were 41 μm and 300 phr.

SGB的粒径越大，用量越多，SGB／VMQ复合材料的导电性能越好，当其粒径为41μm、用量300份时，填充的VMQ具有优良的力学性能和导电性能。

Furthermore, 142 accessions could be divided into three major groups using the clustering analysis, indicating that the gliadin variations among durum wheat were associated with their geographic origin.

高分子量谷蛋白电泳共分离出14种亚基和15种亚基组合，但是优质亚基所占比例不高，这可能是因为硬粒小麦加工用途的特殊性，使得多年的育种并未太多改变硬粒小麦高分子量谷蛋白亚基等位变异的频率，促成优质亚基的累计。

A pair of primers that contained flanking hydropathic amino acid codons were synthesized, to amply the sequence coding for 10~34 aa in the precursor sequence. The amplified fragment was inserted into pRSET-A to generate the first double repeat of the precursor gene. By utilizing a pair of isocaudamer BamH I and Bgl II sites, and another downstream Hind III site of plasmid pRSET-A, following a series of simple double digestions and ligation of the resulted products, a series of repeat (3, 4 and 6) precursor peptide fragment genes were derived.

本实验设计一对两侧含编码疏水性氨基酸密码子的引物，经过扩增前导序列10~34aa基因序列，并重新克隆入质粒pRSET-A构建串联二聚体后，再利用质粒pRSET-A的BamH I / Bgl II同尾酶克隆位点，经一系列简单的酶切和连接，快速构建这一前导肽中不含组氨酸标签序列的串联多聚体基因，并成功表达其六聚体重组蛋白。

Tabaci was the shortest (19.3 d) on hairy gourd and the longest (29.0 d) on bitter cucumber, the survival rate from egg to adult was the highest (92.85%) on cucumber and the lowest (53.08%) on bitter cucumber, the laid eggs were the most (187.4 eggs per female) on cucumber and the least (30.0 eggs per female) on bitter cucumber, and the longevity was the longest (25.2 d) on cucumber and the shortest (10.9 d) on bitter cucumber. The intrinsic rate of increase r(subscript mon cucumber, hairy gourd, bitter cucumber, and sponge gourd was 0.1453, 0.1429, 0.0616, and 0.1055, respectively.

结果表明，B型烟粉虱在节瓜上的世代发育历期最短，为19.3d，在苦瓜上的世代发育历期最长，为29.0d；世代存活率在黄瓜上最高，为92.85%，在苦瓜上最低，为53.08%；平均单雌产卵量在黄瓜上最多，为187.4粒，苦瓜上最少，为30.0粒；雌成虫寿命以在黄瓜上最长，为25.2d，在苦瓜上最短，为10.9d.B型烟粉虱在黄瓜、节瓜、苦瓜和丝瓜上的内禀增长率r(下标 m分别为0.1453、0.1429、0.0616和0.1055。

Sediments with particle size less than 0.15 mm and larger than 0.55 mm are more suitable for the survival of T. tubifex. The former had higher organic matter content, while the latter had larger pore size in the particles, which allows the T. tubifex to move and obtain more food from the particles.

颗粒粒径对颤蚓迁移的影响主要是由颗粒中有机质含量而非粒径本身决定，粒径小于0.15mm和大于0.55mm的颗粒适宜颤蚓生存，前者有机质含量高，后者则颗粒间空隙大，颤蚓可快速通过并获取更多的食物。

In order to prevent linear PCV2 cyclization, PCR mutagenesis was used to construct the first molecular clone (pSK-2PCV2) by ligating two copies of the complete PCV2 genome with the pBluescript SK vector. In addition, pSK-PCV2 and ds-PCV2 were constructed. PK-15 cells were transfected with above three infectious clones.

本研究应用PCR诱变技术解决了外源片段易于自连的难题，成功将2个PCV2 SD1株全基因组(DQ346683)头尾相接插入到真核生物表达载体pSK的多克隆位点中，构建重组质粒pSK-2PCV2；另外课题组成功构建含单个PCV2全基因组的pSK-PCV2和自身环化质粒ds-PCV2。

Ultrastructurally, the chalazal border of the mature egg cell demonstrates regularly discontinuous regions in which exist a great number of single or double-membrane vesicles.

卵细胞中的质体多含淀粉粒，精细胞中的质体均不含淀粉粒。DNA荧光显示，卵细胞质中具丰富的类核并可以断定环状类核为线粒体DNA。

The results show that the2 0～ 40 cm and40～ 60 cm layers for the red loessial soil and2 0～ 40 cm layer for the red loessial soil had a large amount of easily mineralizable nitrogen besides the0～ 2 0 cm layer, but the easily mineralizable nitrogen was little...

总体上看，红油土中氮素的矿化和硝化作用强于红垆土。铵态氮肥在粘粒含量少、有机质含量高土层中的迅速减少主要归咎于硝化，而在粘粒含量多、有机质含量少的土层，主要取决于矿物固定

Comparing size distribution of trace elements at haze weather and the normal weather discovered that,Ca、Ti、Fe、Cr showed significant enrichment in the small size particle at the haze weather:Cu,As didn't have different at such two kind of weather conditions;Zn、Mn、Pb appeared bimodal even trimodal distribution,whose suggested that there were a long distance transmission in originations of such three metals.

对比正常天气下的金属元素的粒径分布，发现：Ca、Ti、Fe、Cr 等元素在灰霾发生时细粒径上有明显的富集： Cu、As 在两种天气条件下区别不是很大：Zn、Mn、Pb 等元素在两种天气条件下均出现双峰甚至多峰分布。由此推断 Zn、Mn、Pb 的来源中可能存在长距离传输。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。