查询词典 vacuum bulb

In order to breed new germplasm for Narcissus tazetta,the bulb of Narcissus tazetta is used as explants.The adventitious buds is induced in MS media with hormone combination.γ-ray irradiation treatment of Narcissus tazetta combined with tissue culture is studied.Three materials,including the bulb basal plate tissues inoculated for 7 days,tissues transferred in fresh differentiation culture medium for three days after inoculated for 25 days,and small bulbs in vitro,are studied.

以带鳞片叶的鳞茎盘为外植体，接种在添加激素的MS培养基上，通过激素组合筛选合适的培养基获得不定芽，同时对在预分化培养基上接种7D的外植体、接种25D后转接到分化培养基上3D的外植体、诱导产生的试管小鳞茎进行辐照诱变处理，研究了60COΓ射线对中国水仙丛生芽分化以及小鳞茎生长的影响。

In cider to breed new gern1asm for Narcissus tazetta, the bulb of Narcissus tazetta is used as explants. The adventitious buds is induced in MS media with hormone combination.γ-ray irradiation treatment of Narcissus tazetta combined with tissue culture is studied. Three materials, including the bulb basal plate tissues inoculated for 7 days, tissues transferred in fresh differentiation culture medium for three days after inoculated for 25 days, and small bulbs in tarn, are studied.

以带鳞片叶的鳞茎盘为外植体，接种在添加激素的MS培养基上，通过激素组合筛选合适的培养基获得不定芽，同时对在预分化培养基上接种7d的外植体、接种25d后转接到分化培养基上3d的外植体、诱导产生的试管小鳞茎进行辐照诱变处理，研究了60Coγ射线对中国水仙丛生芽分化以及小鳞茎生长的影响。

The bulb scales had a higher induction rate of 89.3% to 93.3%, better quality and lower decay rate and the best rooting, in which single-scale reproduction coefficient reached 1.14 to 1.19 when cutting in soil from original environment and peat and pearlite (1:1) as medium under the condition of 25℃ and dark, followed by cutting in peat and sand (2:1) and peat and vermiculite and perlite (1:1:1). There were the highest single-scale reproduction coefficient (1.38) when cutting in sand, but the induction rate was lowest (58.7%). The bulb scales was easy to rot and unfit for use in peat.

以原生土、草炭＋珍珠岩(1：1)这2种基质最好，诱导率达89.3%93.3%，平均每鳞片繁殖小鳞茎数较高，达1.14~1.19个，产生的小鳞茎质量也较好，而且鳞片腐烂率低，生根效果也最好；草炭+河沙(2：1)及草炭+珍珠岩+蛭石(1：1：1)的扦插效果仅次于草炭+珍珠岩(1：1)；河沙扦插鳞片时，平均每鳞片繁殖小鳞茎数最高，达1.38个，但诱导率最低(58.7%)，易造成鳞片干萎，草炭则易造成鳞片大量腐烂，均不宜使用。

The study supplied a method preventing disease in bulb scale propagation. It could supply a theory basis for propagation of Lily bulb.

结论］为防止百合理片繁殖中鳞片感染病害以及进行百合种球规模化繁育提供了理论依据。

Moreover, cold treatment had little effect on flowering stage. About 54 000 new plantlets could be obtained from one bulb. It took only 8 months from bulb scale to flowering.

一个中等大小已脱春化的鳞茎通过两步外植体法能扩繁出54000株左右的新植株，从鳞片叶开始至开花仪需8个月，而且4℃低温处理对开花期的影响不大。

On the basis of the FHWA study, PCI developed the PCI bulb-tee standard, which was endorsed by bridge engineers at the 1987 AASHTO annual meeting,Subsequently ,the PCI bulb-tee cross section was adopted in several states.

在此基础上的预测研究，药物开发的PCI灯泡媞标准所通过的桥梁工程师，在1987年aashto年度会议，随后，喷煤灯泡媞截面通过几个国家。

The only noticeable difference was a sense that the sun had become smaller. It looked like a fiery light bulb. Surrounding this bulb, faint aureoles of polar light twinkled over an area of several square acres.

唯一可以感觉到的是太阳变小了，像一盏炽热的灯泡，灯泡周围数亩则焕发著圈圈淡淡的极光。

By Hong Kong, Taiwan and the mainland of each plant material for the production of raw materials, mainly the production of automotive steering''''special lamps, bulbs command car, car lights, special automotive dashboard lamps, supporting parts, lamp caps, lampholders, bulbs toys , Christmas Lights String DC, AC, hand drum bulb, neon bulb, flash bulbs, LED light-emitting diodes, a variety of electrical lights, all kinds of metal shrapnel, cells, etc.......

均由港、台、大陆各名厂的原料为生产材料，主要生产''''特种汽车转向灯、车箱指挥胆、轿车装饰灯、特殊汽车仪表台灯、配套零件、灯头、灯座、玩具灯泡、圣诞灯串DC、AC、手筒胆、氖胆、闪胆、LED发光二极管、各种电器指示灯、各种五金弹片、电池片……等''''。

Light bulbs, lamp holder, lamp sets; power beads, halogen bulb, flash bubble; xenon bulbs, Krypton bulb,; fuses, fuse blocks

灯泡，灯座，灯套，电珠，卤素灯泡，闪泡氙气灯泡，氪气灯泡，保险丝，保险管座

This experiment, in the studied foundation of the predecessor, further selected off-season garlic cultivars, regulated the off-season cultivation garlics bulb growth with applying the technology of the plant growth regulator and dark-breaking, enriched the basis theory of research to the growth of the garlic scape and bulb, and provided the basic for the garlic off-season cultural technique.

本试验在前人研究的基础上，进一步筛选了反季节栽培大蒜品种，并应用植物生长物质和暗期光中断技术对反季节栽培大蒜的鳞茎发育做了研究，丰富了蒜薹和鳞茎发育的理论，为大蒜反季节栽培技术提供了依据。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。