组合头

Result Based on directly regenerated plant of in vitro plant of Xinjiang cotton, the cotton epicotyl treated by pre-culture for 3-5 d was immersed in bacteria for 15 min and co-cultured for 2 d. Cephalothin at 100 mg/L was used to inhibit bacteria after 50 mg/L kan selection. And the combination of cytokinin with relatively high content and auxin with low content was used in its directly budding culture to obtain resistant seedlings.

结果］在新疆棉花离体培养植株直接再生植株基础上，经3~5d预培养处理过的棉花上胚轴，在浸菌15 min共培养2 d后，经50 mg/L kan筛选，用1000 mg/L头孢霉素抑菌，并用相对高含量细胞分裂素和低含量生长素的组合对其进行直接出芽培养，从而获得抗性小苗。

ResultBased on directly regenerated plant of in vitro plant of Xinjiang cotton,the cotton epicotyl treated by pre-culture for 3-5d was immersed in bacteria for 15min and co-cultured for 2d.Cephalothin at 1000mg/L was used to inhibit bacteria after 50mg/L kanselection.And the combination of cytokinin with relatively high content and auxin with lowcontent was used in its directly budding culture to obtain resistant seedlings.

结果在新疆棉花离体培养植株直接再生植株基础上，经3～5d预培养处理过的棉花上胚轴，在浸菌15min共培养2d后，经50mg/Lkan筛选，用1000mg/L头孢霉素抑菌，并用相对高含量细胞分裂素和低含量生长素的组合对其进行直接出芽培养，从而获得抗性小苗。

Working principle: Head of initiation fire tube and head of everlasting tube may be combined and fixed on flare tip.

工作原理：引火管头部与长明灯头部组合在一起，通过支撑装置固定在火炬头上。

Hexagon head bolt, single coil spring lock washer and plain washer assemblies

六角头螺栓，弹簧垫圈和平垫圈组合件

Cross recessed hexagon bolt with indentation, single coil lock washer and plain washer assemblies

十字槽凹穴六角头螺栓，弹簧垫圈和平垫圈组合件

The combination of all of these patterns suggests the position of leadership that Medici family possessed in Florence.

百合花是佛罗伦萨的市花；而王冠下的狮子头，则是佛罗伦萨城的象征，这些图案的组合，暗示着美第奇家族在佛罗伦萨城的领袖地位。

Based on extended Linsker's network developed by Wimbauer et al.,we build a model for the receptive field of toad's R3 ganglion cell and a model for the receptive field of the nLM neuron of pigeon. Computer simulations on the 'head/tail preference' property,the configurational selectivity of the R3 neuron,and the selectivity for contrast,direction,orientation and the length of the moving edges of the nLM neuron,have been made. The simulation results are consistent with the physiological experiments qualitatively.

为揭示这类神经元的信息加工原理，以Wimbauer等人提出的时延Linsker网络为基础，通过将不同的时空动态感受野线性组合，建立了蟾蜍视神经节R3类神经元和家鸽扁豆核神经元的感受野模型，并模拟了R3神经元对蠕虫样刺激物的"头/尾偏爱"特征，细胞对刺激物的构型选择性以及nLM神经元对运动边缘的反差、方向、边缘朝向和长度的选择性。

Electrical appliance screws, computer screws, toy screws, triangle screws, non-standard screws, cup head screws, nuts, plugboard screws, rivets, rivet bushings, cup nuts, combined screws

专业生产各类电器螺丝、电脑螺丝、玩具螺丝、三角螺丝，非标螺丝、杯头螺丝、螺母、介子、线路板螺丝、压铆件、铆钉衬套、罩形螺母、组合螺丝

The objective was to reveal characteristics of nutrients accumulation and distribution in early and ratoon rice under different cultivation models; Dry weight and nutrients contents in the rice plants were determined at different developmental stages, using a new combination hybrid rice II Youhang 1 under super high-yield cultivation and conventional cultivation models;The results showed that the accumulated N, P and K in the plant were 15.06 g/m2, 4.58 g/m2 and 15.8 g/m2 at the fully ripening stage under SHC models, which were 47.2%, 21.2% higher and 9.1% lower than those under CC models respectively.

探讨不同栽培模式早稻-再生稻水稻的养分积累动态和分配特征；以杂交水稻新组合Ⅱ优航1号为材料，采用超高产栽培和常规栽培模式，通过测定水稻各生育期的干物质积累和养分含量变化；超高产模式头季稻稻株N含量在全生育期均高于常规模式，孕穗前稻株P含量、黄熟前及再生稻K含量亦明显高于常规模式。

A DPC ( 300 ) includes: a frequency source ( 310 ) for generating a clock signal; a delay line ( 320 ) for receiving the clock signal and generating phase-shifted clock signals at output taps; a digital control device ( 330 ) for generating a control signal; and a windowing and selection circuit for generating the output signal, that includes sequential logic devices ( 500, 510, 520 ) and a combining network.

DPC(300)包括：频率源(310)，用于产生时钟信号；延迟线(320)，用于接收时钟信号并在输出抽头产生相移时钟信号；数字控制器件(330)，用于产生控制信号；以及开窗口与选择电路，用于产生输出信号，包括：时序逻辑器件(500、510、520)和组合网络。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。