雌雄

Furcifera was observed with scanning electron microscope. Three types of sensilla and a kind of sensilla cluster were observed on the antenna of the adult, and no morphological difference was found in these sensilla between the male and female adults.

结果表明，白背飞虱成虫触角上有3种类型的感器--毛形、刺形和耳状感器，以及由毛形和耳状感器组成的一种菊花状的感器簇，且这些感器在雌雄中不存在二型性。

Well what can you say about the Silverbill, lovely warbling song, willing breeder, and all round pleasant species to keep.

本人拙译：对Silverbill能说些什么呢？鸣声委婉，繁殖容易。具备一切招人喜爱的特点。雌雄体态相似却易区分，小雄鸟一出窝就能鸣唱了。

The DNA was extracted from mature Spinacia oleracea L.separately by the method of CTAB, then used as template after mixed by gender to be amplified with the optimized RAPD reaction condition. A total of 160 primers (10 bp) and 40 pairs of primers were screened, 44 primers of which produced clear patterns.

菠菜为雌雄异株植物，用CTAB法提取其雌雄成株幼嫩叶片总DNA分别构建雌、雄株的DNA池，以之为模板，用已优化的RAPD体系扩增，在160条随机引物(10 bp)和40个引物对中筛选出44个扩增效果较好的单引物，再从中进行进一步筛选。

The EAG results showed that no significant difference between female and male S.bifasciatus.The EAG responses of S.bifasciatus to 3-Carene,Limonene,Terpinene and Thujopsene were increased with the concentration respecitively within the range of 1/1000-1/10.The results of "Y" tube olfactory bioassay showed the pests can be attracted by 1/100 Limonene,3-Carene and Thujopsene.Original and 1/10 Terpinene was the best. In addition,the extracts of A2 and D1 also caused positive attraction to S.bifasciatus,while the extracts by SE and SDE were non-attractive.

触角电位测定结果表明，双条杉天牛雌雄成虫对样品的EAG反应无显著差异。1/10浓度的3-蒈烯、柠檬烯、萜品烯和罗汉柏烯的EAG值最大。Y型嗅觉行为生测结果表明，1/100浓度的柠檬烯、3-蒈烯和罗汉柏烯对天牛有明显引诱效果，萜品烯则是原液和1/10浓度的引诱效果最好；α-蒎烯和β-蒎烯无明显引诱效果。4种提取方法中，改装简易蒸馏法样品(A2)和超临界CO_2萃取样品(D1)对天牛具有明显引诱作用；索氏提取物和并时蒸馏萃取物无引诱效果。

With wild B. thoracica as the material, the distribution of mineral elements such as Ca, Fe, Zn, Cu, Mn etc in its breast muscle, leg muscle, skeleton and feathers were detected by atomic absorption spectrometry, and the amount of mineral elements in male and famale B. thoracica were compared. In each part of B.

方法］以野生灰胸竹鸡为材料，用原子吸收光度法测定Ca、Fe、Zn、Cu、Mn等矿质元素在其胸肌、腿肌、骨骼和羽毛中的分布情况，并对雌雄个体矿质元素含量进行了比较。

The amount of different mineral elements in different parts of male and famale B. thoracica had big difference, except Zn; the amount of other mineral elements in female breast muscle were all higher than that in male breast muscle, and the amount of Ca, Fe in leg muscle, Ca, Cu, Mn in skeleton and Cu, Mn in feathers of male were all higher than that of female, but the amount of Ca, Fe, Zn in feathers of female were higher than that of male.

雌雄个体不同部位、不同矿质元素含量存在较大差异，除Zn外，雌性胸肌中其他元素的含量高于雄性，雄性腿肌中Ca、Fe含量、骨骼中Ca、Cu、Mn含量、羽毛中Cu、Mn含量均高于雌性，雌性羽毛中Ca、Fe、Zn含量高于雄性。

There were no effect in general on viability of Trichogramma chilonis treated with 10,70,150 and 300 mGy 60 Co γ irradiation in eggs stage, but the 150 and 300 mGy irradiation treatment in pupae stage induced significantly alteration of sex ratio in favor of female adults in F 1 generation.

在卵期用 1 0、70、1 5 0和 30 0mGy60 Coγ射线处理，对赤眼蜂的生活力基本没有影响；而在蛹后期用 1 5 0mGy和 30 0mGy处理，导致了盟黄赤眼蜂F1代的雌雄比例显著提高。

Observation were made on the fertilization and embryo development in wide hybridization between Triticum aestivum L.

本文还报道了小麦与节节麦远缘杂交时雌雄性核的结合及杂种胚和胚乳的发育情况，探讨了小麦与节节麦杂交结实率低在胚胎学方面的原

The contrast of chemical communication behavior between males and females in non-breeding seasonThe chemical communication behavior of females depend more on vomeronasal system, compared with males in non-breeding season.

非繁殖期雌雄性小熊猫化学通讯行为的差别在非繁殖期，雌性小熊猫的化学通讯行为比雄性个体更多地依赖犁鼻系统。

The sex ratios of female-male SSB from rice and Zizania fields were 1∶1.44 and close to 1∶1 respectively.

水稻田二化螟羽化成虫的雌雄性比为1∶1.44，而茭白田二化螟则接近1∶1。

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。