The regeneration system of tobacco was established. the adventitious shoots were induced from leaf explants of tobacco based on ms basal medium supple - - mented with 2. 0mg / l 6 - ba and 0. 3mg / l naa. then the regenerated plants were rooted on ms medium containing 0. 3mg / l naa
植株再生體系的建立採用無菌苗煙草葉片為外植體,以ms為基本培養基,
篩選出ms + 6 - ba2 . 0mg l + naa0 . 3mg l以誘導不定芽的分化,並於ms + naa0 . 3mg l的pa碩士學位論文v沉了
砂「工隊nk 」主根培養基上生根,獲得完整再生植株。
Vibrates the feeding engine in the production process, may massive, the granulated material from store in the bunker even, fixed time, to give continuously is expected in the installment, may evenly feed the material continuously in the sand and crushed stone production line for the stave machinery, and carries on the coarse fraction to the material, vibrates the feeding engine widely to use in professions and so on metallurgy, coal mine, dressing, building materials, chemical industry, grinding compound stave, in the screening combination plant
振動給料機在生產流程中,可把塊狀、顆粒狀物料從貯料倉中均勻、定時、連續地給到受料裝置中去,在
砂石生產線中可為破碎機械連續均勻地喂料,並對物料進行粗
篩分,振動給料機廣泛用於冶金、煤礦、選礦、建材、化工、磨料等行業的破碎、
篩分聯合設備中
Commonly used preliminary treatment equipment includes bar screen, fine particle sieving, grit chamber, pre - aeration, grease well and scraping chamber, etc. domestic companies have the capability of manufacturing all equipment except fine sieves
常見的前處理設備有攔污柵、細
篩機、沉
砂設備、預曝氣池及除油井或油脂撇除槽等。國內前處理設備除了細
篩篩網須國
Water shutoff agent dsz - a is composed of inorganic particle. its specialities are low cost, easily flow, high strength and long valid period. the agent suits non - selective water shutoff in sand formation. dsz - a not only can plug high water - bearing formation, but also can plug case leakage. dsz - a has been applied on site and gotten good effect. it is a agent which has wide prospect
井下護泵除
砂裝置主要用於產液氣量高,出
砂能力大,利用常規裝置、常規方法很難治理的井.它的設計是建立在丟手封隔器卡封的基礎上,將液體攜
砂能力由地層進入泵管轉變為先過濾(雙層激光割縫
篩管部分) ,再在除
砂器內靜態沉澱、由單流閥排入井底等一系列除
砂護泵優點.本文著重介紹了井下護泵除
砂裝置的工作原理與應用情況
It is difficult to conform the derivations of the native heavy minerals, so the author assumes corresponding procedures as follows to accomplish the research task : firstly, according to the composition typomorphic peculiarities of minerals deriving from mantle, the author selected a part of minerals as preliminary reseach objects from the native heavy minerals and then further investigate the mantle ones and their host rocks in two ways : one is the method of comparation with the corresponding minerals of rocks deriving mantle in the research field and other places ; anorther is the method of multivariate statistical analysis
本次工作為了盡可能地排除非幔源礦物的干擾,根據陳光遠( 1990 ) 、潘兆櫓( 1994 )等學者有關礦物成分標型的論斷,
篩選出地幔特徵元素含量較高的重
砂礦物做為初步研究對象,為達到研究目的採取了如下方法:與區內已發現的幔源巖石(如鉀鎂煌斑巖等) 、國內外有代表性的堿性玄武巖、金伯利巖、鉀鎂煌斑巖的深源包體中的相應礦物進行對比研究的方法;多元統計分類的方法。
In order to choose the plants that were hypertolerant to heavy metals and for the case of phytoremediation of soils that were polluted by heavy metals, the research was carried out by the methods of soil - planting and sand - planting in green - house. the study includes selecting the hypertolerant plants from 36 dominant species found in the vicinity of a pb / zn mine tailings pond, observing the ecophysiological response of the hyperaccumulators, improving - impact of hyperaccumulators on biosolds and examining the effect of nutrient elements ( n p k ) on the lead uptake
為選擇和
篩選富集重金屬或對重金屬具有耐性的植物,以達到利用植物修復重金屬污染土壤的目的,本研究通過溫室
砂培和土培的方法,對生長于鉛鋅尾礦區的36種植物進行了
篩選,研究了富集植物品種對重金屬pb的生理生態效應、對重金屬pb的吸收和耐性以及對污泥的響應,並探討了土壤中的營養元素n 、 p 、 k對植物吸收pb的影響,為植物修復工作提供理論依據。
Physical stare : the manganese sand filter materials, in different content, are sieved and made of natural manganese sand or manganese
物理狀態:該產品是用天然錳
砂或錳礦石做原料,經
篩選加工成含量不同的錳
砂濾聊。
There two types, which consist of elevator, cleaning sieve, removing stone machine, rice huller with 6 ' ' rubber roll, separating machine for sugarplan rotating sieve double elevator, triple rice mill, polisher, sieve with there layers for broken flour
該兩種大米加工組合設備,由毛稻提升機、去石機、 6 ' '膠輥礱谷機、大糠分離器,重力谷糙
篩、雙聯提升機,噴鳳
砂輥碾米機組成。
The formula of cumulative weight percentage at different particle sizes, which was in the case of composite particle size distribution, was proposed
摘要提出了在礦
砂粒徑尺寸級配情況下,不同粒徑的
篩下累積含量公式。
Stainless steel metal fiber sa
不銹鋼金屬纖維防
砂篩管
Metallic fiber sand control si
不銹鋼金屬纖維防
砂篩管
The collapsing strength finite element computation model of slotted liner
割縫防
砂篩管抗擠強度有限元計算模型
It is updated high efficient screening equipment, fit for screening dispersed materials in foundry workshop, such as new sand and used sand
本系列
篩砂機是一種新型高效率的
篩分設備,主要用於鑄造車間新
砂舊
砂等散粒狀物料的
篩分。
This machine fits for cast iron used sand and different damp used sand, including high pressure moulding used sand so that performance of moulding sand and recycling rate can be improved
該機用於鑄鐵干型舊砂和各種潮型舊砂包括高壓造型舊砂篩分,以提高型砂性能和舊砂回收率。