查询词典 2-butene

The Shannon-Wiener index and Simpson index of lichens on trucks at 0– 2.0 m height were 2.71 and 0.89 for the oak coppice, 2.43– 2.45 and 0.88– 0.89 for the secondary P. bonatii forest and Z. bungeanum plantation, and 1.25 and 0.67 for the primary forest, respectively.

树干附生地衣的 Shannon-Wiener 和 Simpson 多样性指数以栎类萌生林最高，分别为2.71和0.89；花椒林和滇山杨林次之，分别为2.43–2.45和0.88–0.89；原生林最低，为1.25和0.67。

In accordance with increasing concentrations of Ca~(2+), Ca~(2+)-ATPase and H~+-ATPase activity in plasma membrane and tonoplast of cucumber root were increased significantly at first, then decreased slightly later; H~+-ATPase activity in plasma membrane and tonoplast of cucumber leaf was changed unremarkably; Ca~(2+)-ATPase activity in plasma membrane and tonoplast of cucumber leaf was increased significantly at first, then decreased slightly later.

低温下，随Ca~(2+)浓度的升高根中质膜和液泡膜Ca~(2+)-ATP酶和H~+-ATP酶活性及叶片中质膜和液泡膜Ca~(2+)-ATP酶活性先升高后下降，叶片中质膜和液泡膜H~+-ATP酶活性无显著变化，说明适当增加营养液中Ca~(2+)浓度后，可提高ATP酶的活性减轻低温伤害。

Ytterbium deuteride samples with atomic ratio of 2.90, 2.53 and 2.23 are produced by ytterbium reaction of deuterium at 400 ℃ and initial deuterium pressure of 6.53, 3.41 and 1.32 MPa, respectively.

在 40 0℃和初始氘气压力分别为 6 5 3、3 41和 1 3 2MPa下，通过镱与氘气反应，制备出D/Yb原子比分别为 2 90、2 5 3、2 2 3的氘化镱样品。

Features: Top speed: 30-32 mph Weight: 36 lbs Max Weight: 200lbs Drive System: Chain Suspension: Rear swing arm Engine: 42cc 2 Stroke Starting: Pull Start Fuel Mixture: 32:1 (2-cycle oil) Fuel Capacity: 1.5 Liter Running Time: 1.5-2 hrs Transmission: Automatic Brake System: Hand lever operated rear disk brake Wheel Type: 11x 4 ply Pneumatic on Aluminum 2 piece rim Available in: Black, Blue and Red.

性能： 最高速度：每小时30-32英里重量：36磅最大重量：200磅传动系统：链条悬挂系统：后摆杆发动机：42cc 2冲程启动系统：推动启动气油比：32：1 燃油容量：1.5升续航能力：1.5-2小时变速箱：自动制动系统：手动连杆，后置碟式制动车轮型号：11英寸4层充气轮胎铝合金2幅轮辋可选颜色：黑、蓝、红

Type 1-1-1,2-2-1 and 2-2-2 account for 91 4%;The appearing rats of distal lingual canal are 24 7%;The appearing rats of double root canal orifices are as follows:Medial canal 78 3%,distalcanalIt don't ...

远中舌根的发生率为 2 4 。7%；双根管口率：近中根为 78.3%，远中根(不含远中舌根，下同)为 19.3%；双根管率：近中根为 88.3%，远中根为 2 3.3%；双根尖孔率：近中根为 5 6 。7%，远中根 8.3%，单根管口而有双根尖孔者，近中为 6 。7%，远中为 3.3%。结论下颌第一恒磨牙根管的类型复杂，充分了解其根管解剖对提高根管预备效果、减少根管遗漏有重要意义。

Leaves solitary or 2 or 3 in fascicles, leaf blade 2-4 × 1.5-3 cm, apex obtuse or rounded; drupe 1.2-1.5 cm in diam.

叶单生或2或3簇生，叶片 2-4 * 1.5-3 厘米，先端钝的或圆形；核果1.2-1.5厘米直径 2 Z。

Results: The tHey and blood fat level in blood plasma and expression of MCP-1mRNAof aorta on model group is obviously higher than that of control group (P＜0.05);the result of immunohistochemistry shows that the expression of VCAM-1 and MMP-2enhanced, Bcl-2 is lower; aorta slice shows endarterium discontinuation, strippingpartly, smooth muscle cell arrange puffly and chaotic, infiltration of lipoid ofdifferent degree are observed in aorta wall, pathological changes suffusion, morexanthoma cell, plaque protrude lumens. The they and blood fat level in blood plasmaand expression of MCP-lmRNA, VCAM-1, MMP-2 of aorta on intervention group aremuch lower than that of model group (P＜0.05); Bcl-2 of intervention group isstrengthened, and the pathomorphology and immunohistochemistry of aorta showpathological changes are slighter than model group.

结果：模型组，血浆中同型半胱氨酸浓度、血脂水平、主动脉MCP-1mRNA表达显著高于正常对照组(P＜0.05)，免疫组化示主动脉内皮细胞VCAM-1、MMP-2表达增强，Bcl-2表达降低；主动脉切片发现动脉内膜不连续，部分剥脱，平滑肌细胞排列疏松、紊乱，主动脉壁均见到程度不同的脂质浸润，其病变弥漫，泡沫细胞较多，可见斑块突出管腔；干预组，血浆中同型半胱氨酸含量、血脂水平显著低于对照组和模型组(P＜0.05)，主动脉MCP-1mRNA、VCAM-1、MMP-2表达显著弱于对照组和模型组(P＜0.05)，Bcl-2表达增强(P＜0.05)，主动脉病理形态学和免疫组织化学检测示病变轻于模型组。

In chapter 3,we study some enumerative problems for 2-tournaments,find theformual for the number of valid score vector and the number for 2-tournaments in npoints,obtain the number of 2-tournaments with specified scores.

第三章讨论2-竞赛矩阵的若干计数问题，得到了n阶有效得分向量和n阶2-竞赛的计数公式；得到了具有特殊得分向量s的2-竞赛的数目〓，给出了{〓是强的}的最小值及〓最小时s的刻划；证明几乎所有的2-竞赛矩阵是不可约的。

Based on thermal conduction theory, a thermal model is built up to get the effective thermal content and the effective thermal conductivity to be 1.0×10^(-3) W/K and 8.1 μJ/K, respectively, and the temperature-fluctuation noise is nearly 1.73×10^(-10)W/Hz(superscript 1/2). According to the device operating principle and energy equipartition theory of thermodynamics, the mechanical-thermal noise is 9.96×10^(-9) W/Hz(superscript 1/2), and the background noise is nearly 3.22×10^(-11)W/Hz(superscript 1/2), so that the normalized detectivity is deduced to be 9.03×10^6 cmHz(superscript 1/2)/W.

从理论上建立了器件的基本热模型，推导得到器件的等效热熔和等效热导分别为8.1μJ/K和1.0×10^(-3)W/K，温度噪声约为1.73×10^(-10)W/Hz(上标 1/2)；通过器件的工作机理和能量均分原理，推导得到热机械噪声的等效噪声功率约为9.96×10^(-9)W/Hz(上标 1/2)，器件的背景噪声约为3.22×10^(-11)W/Hz(上标 1/2)，从而得出器件的归一化探测率约为9.03×106cm。

Results showed that 1 soil structure in the rhizosphere was very high; water-holding capacity and organism count in the soil increased with altitude and duration of bamboo growth. However, soil etiolation and soil acidification was obvious. 2 Soil acidity was adjusted with lime; best applications were 10.625 thm^(-2) on the valley bottom, 14.811 thm^(-2) for the middle slope, and 12.558 thm^(-2) on the valley top.

结果显示：毛竹林根系活动层(60 cm)土壤结构较好，土壤水源涵养功能的大小和土壤的有机质质量分数随毛竹林成林时间和海拔高度的增加而增加；但土壤黄化、酸化特征较明显，土壤酸性调节主要以施用石灰为主，其中谷底毛竹林改造需石灰量为10.625 thm^(-2)，坡面的里白毛竹林为14.811 thm^(-2)，岗地毛竹林需石灰量为12.558 thm^(-2)；在氮磷钾3种元素中，氮素供应总体上良好，但要获得高产，氮肥的补充也是必需的。

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