吐丝

蚕吐丝。

Silkworms spin silk .

吐丝后物质积累量与籽粒产量呈高度性线相关，在香河和北京两个试点r分别达到0.9155和0.9181；

The biomass after silking was significantly positive correlated with the grain yield and the correlation coefficients were 0.9155 and 0.9181 respectively .

对SS和SPS活性影响最大的三个时期分别为：拔节期、吐丝期和孕穗期；

SS and SPS activity were affected markedly at jointing , tasseling and booting .

另外，吐丝后喷施BR亦有增加千粒重的效果。

In addition , 1000-grain weight also increased by spraying BR after corn silk .

红边斜率（Dr）在拔节期、大喇叭口期和开花吐丝期与叶片氮含量的相关关系均达到了极显著水平。

Correlation between red-edge slope and leaf N content was up to most significant level at jointing , booting and anthesis-silking stage .

本文用喇曼（Raman）光谱和X-射线衍射等手段研究了桑蚕吐丝过程中丝腺体不同部位的丝蛋白的构象变化。

In this paper , the conformational transition of silk fibroin in different parts of silkgland was determinated by Raman spectroscopy and LAXS .

在玉米吐丝期，与不施肥处理相比，处理C、处理D和处理F的蔗糖磷酸合成酶（SPS）活性都有所提高。

In corn silking stage , compared with the no fertilizer treatment , the activity of SPS in C , D , F treatments were increased .

但是考虑到Mg和Ca在柞蚕吐丝过程中的作用相似，因此这两种元素可能可以相互替代。

However , by considering the similar effect of Mg and Ca in the spinning process of A. pernyi silkworm , these two metal elements may be replaced from each other .

抽雄吐丝后N、P2O5主要分配在籽粒中，而K2O在籽粒中的分配量很少；

After spinning , N and P_2O_5 were mainly distributed in grains but K_2O was very little .

对出苗到吐丝天数检测到分别位于第3、6染色体上的2个QTL，共可解释的表现型变异为20.4%；

Two QTL locating on chromosome 3 and 6 were detected for days to silking , explaining 20.4 % of the phenotypic variance ;

结果表明，脂肪体是卵黄原蛋白（Vg）合成场所，Vg合成始于吐丝结茧后第4天；

Vg was synthesized in the fat body , and its synthesis started on the 4th day after cocooning .

其中叶面积指数（LAI）和光合速率在吐丝期达到最大值，而光合势在灌浆期达到最大值。

The largest values of the LAI and the photosynthetic rate appeared in spinning stage , but the largest values of the LAD appeared in grain-filling stage .

对抽雄至吐丝间隔天数（ASI）只检测位于第6染色体上的1个QTL，可解释6.5%的表现型变异。

Only one QTL was detected for anthesis to silking interval ( ASI ) which was localized on chromosome 6 , explaining 21.3 % of the phenotypic variance .

概述活套控制系统在高速线材轧制中的作用、控制原理、PLC逻辑控制及活套调节对精轧机和夹送辊、吐丝机之间张力的影响。

A general introduction was made on effect , control principle and PLC logic control of the loop control system in high speed rod rolling . Influence of the loop regulation on tension among finisher , pinch roll and wire laying head was presented .

吐丝期之前各处理间差异不显著，自灌浆期开始，各处理间均差异显著，成熟期各处理均达到最大值，其中CK比T1增加19.76%。

There were no significant differences before silking stage , and there were significant differences after filling stage , and each treatment reached the hightest value in maturity . CK increased 19.76 % compared to T1 .

本试验通过在五龄末期添食蜕皮激素（MH），探讨了MH对家蚕叶平面丝以及添食后折簇营茧区和平面吐丝区的产卵成绩的影响。

The test based on silkworm feeding ecdysone at the end of the 5 th instar , discussed on the effect of ecdysone on plane spinning and laying achievement in the area of folding cocooning frame and plane spinning .

整个生长期间，三品种的LAI都随着密度的增加而增大，以大喇叭口期到吐丝期增长速率最快，到蜡熟期以后LAI减缓。

In the whole growing period , the LAI of the three varieties get bigger as the change of the density , increasing most quick from silk to big trumpet period and getting deceleration at the later period of wax mature .

肖恩热身与一只蝙蝠吐丝进他的Westhills洋基小联盟统一的打球。

Sean warmed up with a bat before changing into his Westhills Yankees Little League uniform to play ball .

吐丝期穗位叶叶绿素SPAD值与氮效率极显著相关，因而，可作为次级选择指标。

The chlorophyll content around the ear at silking stage ( SPAD Value ) was very significantly correlated with N efficiency at low N , so that it might be taken as one of the secondary selection indicators .

超高产春玉米在密度增加过程中，生育后期叶片特别是穗位层以下叶片的衰老加快，光合性能和光化学效率降低，吐丝后LAD比例降低，不利于花后物质积累和产量的提高。

With the density increased of super high yield spring maize , the senescense of bottom leaves especially in anaphase accelerated and the photosynthetic properties and photochemical efficiency reduced , the LAD ratio after flowering reduced . All above block material accumulation and yield enhance after flowering stage .

研究发现，平展型玉米和紧凑型玉米根干重最大值出现的时期不同，二者根干重分别在吐丝后15d和吐丝后30d时达到最大值。

The results showed that there were differences in the root distribution of different maize cultivars . The maximum of root dry weight appears on the 15th and 30th day after silking for spreading-leaf and upright-leaf maize cultivar , respectively .

结果表明，在适宜的叶面积指数范围内，延长灌浆期叶片的功能期，尤其是吐丝30d以后的绿叶面积时间，是高产的根本保证；

The results indicated that to extend the duration of leaf function at filling period especially the time of green leaf area at the period following 30 day after silking was essential to ensure high yield while leaf area index was within reasonable range .

系统测定了天蚕Antheraeayamamai吐丝结茧至成虫期脂肪体、血淋巴和卵巢中卵黄蛋白和可溶性蛋白总含量的动态变化。

In the Japanese oak silkworm , Antheraea yamamai , the titre 's dynamics of vitellogenin ( Vg ) or vitellin ( Vt ) and total soluble proteins in the fat body , haemolymph and ovary from larval cocooning to moth emerging were assayed .

幼虫成熟以后将会吐丝结茧。

When full grown , the larva will spin a cocoon .

许多极细小的导管把每个造丝腺体与吐丝器相连。

Many tiny tubes connect each silk gland with a spinneret .

国内外学者对吐丝温度控制模型进行了大量的研究。

The laying temperature control model is studied widely by researchers .

高速线材吐丝机自平衡吐丝管设计

Design of the Self-Balanced Pipe of High Speed Laying Head

高速线材吐丝机吐圈质量的探讨

Discussion on the quality of wire coil by laying head

桑蚕吐丝能力和茧质与营茧温度的关系

Relationship Between Cocooning Temperature and Spinning Ability and Cocoon Quality of Silkworm

高速线材吐丝机吐丝管空间曲线研究及吐丝质量改进

Research on High-Speed Wire Pipe of Laying Head and Working Quality Improvement