双倍

The principle of phase-matching and the technology of single-axis and double axises phase-matching as well as the phase matching width is introduced;The main features and optical properties of Nd:YVO_4 and KTP are given.

介绍了相位匹配原理，分别对单轴和双轴晶体的相位匹配、相位匹配宽度做了详细分析；介绍了实验所用的激光晶体板条状Nd：YVO_4的基本特性和光学特性及倍频晶体KTP的光学特性。

Gays, lesbians and bisexuals are about twice as likely as heterosexuals to seek treatment for mental health issues or substance abuse.

男女同性恋者和双性恋者因为心理问题或滥用药物寻求治疗的几率是异性恋者的大约两倍。

The minor core protein s C-encoding gene of Muscovy duck reovirus was cloned into theprokaryotic expression vector pET32a. The recombinant plasmid pET32a-s C was amplified andextracted after being transformed into E.coli DH5a competent cells. Restriction analysis withEcoRⅠand SacⅠand sequences analysis indicated that the recombinant plasmid was inserted withcorrect open reading frame. The fusion protein about 50 ku was produced after induction with 0.15mmol/L IPTG of E.coli competent cells transformed with pET32a-sC. The SDS-PAGE andWestern-bloting test indicated that the fusion protein reacted with the convalescents sera of duckinfected with Muscovy duck reovirus. The indirect ELISA method was developed by using thepurified fusion s C protein as coating antigen. The optimal concentration of s C was 5μg/ml, thedilution of serum sample was 1:40; The results showed that preparation of an ELISA by using sCas coating antigen in detecting 50 field duck sera in comparison with the AGIP were more sensitiveand specific than agar gel immuno-diffusion AGIP test. The results suggest that presence ofantibody against viral protein sC in duck may be a good indicator by the sC-ELISA for detectionof duck infection with reovirus.

同时，本研究将编码外壳蛋白σC的基因克隆于原核表达载体pET32a上，经过EcoRⅠ和SacⅠ双酶切鉴定和序列分析后，得到阳性重组质粒pET32a-σC；将阳性重组质粒pET32a-σC转化到大肠杆菌BL-21感受态细胞中进行诱导表达，经SDS-PAGE和Western-blbtting检测分析，融合表达的蛋白能够与番鸭呼肠孤病毒感染的康复鸭血清发生特异性反应；将融合表达的蛋白纯化后作为包被抗原，建立了检测鸭血清中呼肠孤病毒抗体的间接酶联免疫吸附试验检测方法，此方法中抗原的最佳包被浓度为5μg／ml、标准阳性血清的最适稀释倍数为1：40倍，用此方法对50份鸭血清样品进行检测，并与琼脂糖凝胶扩散试验检测抗体的法相比较，证明此ELISA方法具有良好的特异性和敏感性，本研究为今后鸭呼肠孤病毒诊断试剂盒的研制奠定了基础。

In groundings, single hull tankers were observed to have a spill 8 times more often than double hull tankers.

在搁浅，单壳油轮发现有泄漏的8倍多于双壳油轮。

The interlayer structure of the film device has the speciality of stable double inversing electricity, and the resistance ratio of the high resistance state and the low resistance state is usually 106 to 107 fold and even higher.

这种夹层结构的薄膜器件具有稳定的可逆电双稳特性；高电阻态和低电阻态的阻值比通常为106～107倍，甚至可以更高。

The study revealed that the residues of chlorothalonil in mushroom were above the MRL in China (1 mg/kg) after 5 days at the recommended dosages (1800 g/hm^2) and double of that, however, the residues of thiram in mushroom were below the MRL (3 mg/kg) after 2 days.

在最高推荐剂量(1800 g/hm^2)和推荐剂量2倍的条件下，施药1~2次，施药后第5d，蘑菇中百菌清残留量高于我国规定的MRL值(1 mg/kg)；而施药后2d福美双残留量已低于MRL值(3mg/kg)。

The behavior of chromosomes at meiosis of PMC of 9 combination and selfed seed set of 16 combination of Triticum-Aegilopsamphidiploids were studied.

对小麦-山羊双二倍体9个组合的细胞遗传学和16个组合的自交结实率进行了观察。

The pumpkin seed oil has higher content VA , VE, carotene before pressing by suitable heat treatment.

通过研究发现，冷榨前，适当的加热处理有利于提高南瓜籽油中VA、VE、胡萝卜素的含量，其中，单螺旋榨油机制取的南瓜籽油中VE的含量是双螺旋榨油机的3倍。

Flying at an altitude of 30,000 meters to reach a maximum speed of 3.5 times the speed of sound, called it "two-three."

飞行高度达到30000米，最大速度达到3.5倍音速，这称之为&双三&。

Employing high-dilute method and 5-fold excess amine prepared two new "two-armed" acyclic diamine intermediates I_a and I_b, which are also intermediates of synthesizing microcyclic compounds, and eight aromatic Schiff bases, II_, were synthesized from reaction of I_a or I_b condensing with different aromatic aldehydes. Their composition and structure were characterized by Elemental analysis, IR, UV-Vis, LIF,~1HNMR and MS. The hydrogen bond interactions and MS fragmental patterns were also discussed.3. Several novel transition metal complexes using II_a as ligand were synthesized and identified by Elemental analysis, IR, UV-Vis,~1HNMR and molar conductivity.

1，采用高度稀释及胺过量五倍的方法合成了两个具有吡啶双酰胺臂的非环二胺Ⅰ_a和Ⅰ_b，并以它们为中间体进一步合成了八个芳香席夫碱Ⅱ_a-Ⅱ_h，通过元素分析及各种波谱测试鉴定了它们的组成与结构，对化合物的UV-Vis、LIF、IR、~1HNMR及MS进行了较为详细的讨论，还探讨了席夫碱的氢键相互作用及质谱裂解方式； 2，以席夫碱Ⅱ_a为配体合成了几个新型的过渡金属配合物，并通过元素分析、UV-Vis、IR、~1HNMR、摩尔电导及DTA—TG对其进行了表征，讨论了化合物的配位情况及配体在配位中的脱质子行为。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。