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And the conditions in cell suspension culture of Mikania micrantha were studied. The results showed that sucrose was the compatible carbon sucrose, and 30g/L sucrose concentration can satisfy the growth of Mikania micrantha cell; ammonium was absorbed under different sucrose concentration that haven't demonstrated significant specificity, and was completely absorbed on the lag phase and the early logarithmic phase; while nitrate was mainly absorbed on logarithmic phase. The density-dependent of Mikania micrantha cell starting to grow and density-inhibited of cell growth were proposed, the fittest inoculating quantity of Mikania micrantha in cell suspension culture was 40g/L.

并对微甘菊细胞悬浮培养条件进行研究,结果表明,微甘菊细胞生长适宜的碳源是蔗糖,并且较合适的蔗糖浓度为30g/L;在不同蔗糖浓度下氨基氮的吸收差别不大,氨基氮在迟滞期和对数期前期已基本消耗完毕,对数期生长主要利用硝基氮,因而提出,在微甘菊细胞液体悬浮培养中,氮源可以采用初始低氨基氮浓度,对数期中间维持高硝基氮,而且对数期中逐步流加少量的氨基氮;微甘菊细胞迟滞期分裂启动存在密度依赖现象,对数期生长存在密度抑制现象,最适接种量为40g/L。

The suitable reaction parameters were found that mole ratio of potassium persulphate to sodium sulfite,mole percent of initiator and mole percent of BS relative to total monomer, mass percent of total monomer in water, mass percent of surfactant in water, reaction temperature,pH value and reaction time are 3:1,0.06%, 1.45%,20%,5.5%,50 ℃,6 - 7 and 12 h, respectively.

研究得到了适宜的反应条件:n(K2S2O8):n(Na,SO3)=3:1,引发剂和Bs相对于单体总量的摩尔分数分别为0.06%和1.45%,总单体在水里的质量分数为20%,SDS在水里的质量分数为5.5%,pH=6—7,反应温度50℃。

With choosing the suitable lining technology, holding the key points of execution, adopting reasonable measures during the operation and maintaining, the problem of corrosion on phosphatic compound fertilizer equipment is better solved, the plant is functioning normally, and the consumption and charge are reduced.

结合实践经验,对磷复肥设备的几种衬里工艺不断进行完善和总结,通过选择适宜的衬里工艺,掌握施工要点,并采取合理的使用和检修措施,较好地解决磷复肥设备的腐蚀问题,保证了生产正常运行,并节约了费用。

Mixed chlorotoluenes photo-chlorination experiments in a loop reactor were made, the effects of chlorine flow, temperature and p-/o- chlorotoluene initial ratio on mixed chlorotoluenes photo-chlorination were researched. The relations between the concentration of each component and time under different conditions were measured. The rule and the suitable process parameters of the photochlorination of p-chloromethyl benzene in the side chain were obtained.

本文在环流反应器中进行了邻、对氯甲苯混合光氯化反应试验,分别考察了不同氯气流量、不同氯化温度和不同对/邻氯甲苯初始配比对对、邻氯甲苯侧链光氯化反应的影响,实测了反应液中各组分浓度随时间的变化关系,得出了对、邻氯甲苯的侧链光氯化反应规律和适宜的工艺条件。

Recovery of set of Populus ussuriensis wood treated with BTCA of 9%concentration was nearly 14% in dry.

BTCA是一种新型的、有效的木材横纹压缩大变形的定型化学试剂,适宜的浓度为9%。

That is, splitting up of the overall reaction in spatial or temporal into two steps,hydrocarbon selective oxidation and reoxidation of the reduced catalyst, and matching each step with suitable reaction condition.

模拟研究和在实验室微型反应器上的研究结果证实,在适宜的操作条件下,通过固定床反应器人为非定态操作能够改善反应的时均性能、提高顺酐的选择性和收率。

Based on the field experiment data of winter wheat blending irrigation by saline water in Nanpi Ecological Agriculture Experimental Station of the Chinese Academy of Sciences from 2002 to 2005, the effects of blending irrigation with mineralization of 0.84, 3, 4 and 5 g/L on the soil salification rate, soil sodium adsorption ratio of soil saturation extract as well as winter wheat yield and yield constitute factors irrigated were studied in order to determine upper limit of irrigation mineralization suitable for the location.

根据中科院南皮生态农业试验站2002~2005年的冬小麦微咸水混灌田间试验资料,以淡水为对照研究了矿化度分别为3、4、5 g/L的微咸水混灌对土壤积盐率、土壤饱和浸提液钠吸附比、冬小麦产量和产量构成因素以及水分利用效率的影响,从而确定适宜的灌溉水矿化度上限。

"That can cause real problems, because that remaining 10 percent of patients — who may have look-alike conditions such as multi-system atrophy or progressive supranuclear palsy — end up getting treated with Parkinson's drugs," Dr.

&这确实是个问题,因为剩下10%的病人-他们可能患有诸如多系统萎缩或进行性核上性麻痹的疾病-最后则接受帕金森病药物的治疗,&Beal博士说,&这些药物也许能起一时之效,但同时,他们并未能接受最适宜的治疗。&

The function of sustentacular cells was found in two aspects: one was sustentacular, which made a suitable place for the development of spematogenic cells, another was nutritive, which supplied materials and energy for the development of spermatogenic cells.

支持细胞的作用包括两个方面:一为支持作用,使生精细胞有一个适宜的发育场所;二为营养作用,为生精细胞的发育提供足够的物质和能量。

Somatic embryogenesis is a remarkable illustration of plant totipotency,and under appropriate culture medium can develop to an adult plant with high frequency, so it is a excellent system for genetic improvement.

植物体细胞胚发生是植物细胞全能性的重要体现,在适宜的培养条件下能够以较高的频率再生出完整的植株,是植物遗传改良受体系统。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。