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Na$_{0.5}$Bi$_{0.5}$$_{1-x}$Ba$_{x}$TiO$_{3}$ ceramics with the compositions near the morphotropic phase boundary show superior piezoelectric properties due to the existence of more spontaneous polarization directions.

在准同质相界附近的组分存在较多的自发极化取向，因而表现出优良的压电性能。

The alkaline-earth metal complexes with mucic acid was successfully prepared via gel formation and characterized by elemental analysis,FT-IR measurements.

结果表明，粘液酸的两个羧基和四个羟基均能参与配位键的形成，而中心离子 Ca~(2+)、Sr~(2+)、Ba~(2+)与配体粘液酸的配位状况存在着一定差异。

The mechanism ru nning of sustainable development of a ba sin system is analyzed, the index system of sustai nable deelopment and its fundamental str ucture are established.

从静态和动态两个方面对岷江上游流域系统的可持续发展作了综合实证分析。

After 5～7d of culture,adventitious buds appeared directly from explants without any intervening callus on Murashige and Skoog medium supplemented with different concentrations of N-6-benzyladenine alone or together with 0.5mg/L α-naphthaleneacetic acid.

在附加不同浓度N-6-benzyladenine(6-BA)或与低浓度α-naphthaleneacetic acid组合的MS培养基上，5~7d外植体表面不经过愈伤组织诱导阶段，直接形成不定芽。

Well developed shoots were successfully obtained after 45 days of culture of shoot tip explants on MS medium supplemented with 4-8 mg/l Benzylaminopurine and 0.5 mg/l α-Naphthaleneacetic acid. Addition of 0.01-0.5 mg/l Thidiazuron in the medium was found to be beneficial for rapid growth of shoot tip explants.

培植体培养於MS基本盐类并添加4-8mg/l BA和0.5mg/l NAA的培养基45天后，对促进新茎节萌发效果良好；而接种於含0.01-0.5mg/l TDZ固体培养之茎顶培植体，也显示有促进茎节快速生长的作用。

Pedicel axillary buds were cultured on Murashige and Skoog's basal medium with combinations of 6-benzylaminopurine (2-3 mg/L) and α-naphthaleneacetic acid (0.1-0.5 mg/L).

在不含其他有机添加物，只添加BA (3mg/L)+NAA (0 。1mg/L)的MS培养基中，原球茎诱导效率达 80 %。

The greatest efficiency in Agrobacterium-mediated transformation of lettuce cotyledons(2～3 days-old) was obtained by 10-time dilution of Agrobacterium cells, 15-min inoculation time,1-day pre-culture,4-day co-culture and without AS using the MS(Murashige and Skoog\'s,1962) medium supplemented with 0.2 mg/L 6-benzylaminopurine,0.1 mg/Lα-naphthaleneacetic acid,100 mg/L Kan and 500 mg/L Carb,.

在农杆菌介导的皱叶生菜子叶(2～3 day苗龄)转化试验中，采用含BA 0.2mg/L，NAA 0.1 mg/L，Kan 100 mg/L，Carb 500 mg/L的MS培养基，最优的转化条件为农杆菌稀释倍数为10倍，预培养时间为1 day，共培养时间为4 day，浸染时间为15 min，不添加乙酰丁香酮。

Pedicel axillary buds were cultured on Murashige and Skoog's basal medium with combi-nations of 6-benzylaminopurine (2-3 mgIL) and α-naphthaleneacetic acid (0.1-0.5 mg/L).

在不含其他有机添加物，只添加BA (3 mg/L)+ NAA (0.1 mg/L)的MS培养基中，原球茎诱导效率达80%。

Hello, my name is Miss Katie Lucier. I am from Chatham Ontario, Canada. I completed my BA in French Linguistics and Literature at the University of Western Ontario and then traveled to North Bay to complete my Bachelor of Education at Nipissing University.

在新学年里，我将实践我的教育理想，协助学生明辨是非，建立乐於学习、勇於探索的精神，并提升他们与人沟通、合作，以及领导的能力。

Coupled with the oceanographical of architectural base foundation engineer ing of our country at very fast speed develop,with the project of architectural ba se foundation engineering closely-relate the cost of construction stewardship of architectural base foundation engineering also increasingly brought out vital fun ction.

伴随着我国建筑地基基础工程事业的飞速发展，与建筑地基基础工程事业密切相关的建筑地基基础工程造价管理工作也越来越显示出重要作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。