查询词典 bivalence

Perhaps the answer to this am- bivalence lies in our history.

也许这个答案在历史中就有。

The effect ofα-methyl-D-mannoside and bivalence metal ion on LCA coupling to epoxy-coated magnetic particles is not significant.

研究α-甲基甘露糖及二价金属离子对其分离纯化糖蛋白的影响，二者对于凝集素与环氧磁粒的偶联并无显著影响。

We also study the effect ofα-methyl-D-mannoside and bivalence metal ion on LCA coupling to epoxy-coated magnetic particles.

研究α-甲基甘露糖苷及二价金属离子对于偶联反应的影响。

Long in the past, in the theory of bivalence logic (absolutely true or absolutely false), things were thought to be in a certain category completely or out of it completely.

传统的二值逻辑理论认为，事物要么完全属于某一范畴，要么与此范畴毫无瓜葛，全无两可情况可言，范畴之间的界线是清晰而明确的。

It is also argued that giving up the principle of bivalence, letting vague statements have a truth value between true and false or no truth value at all, will not help solving the vagueness problems, but, on the contrary, will be a hindrance to finding a solution.

本文也论述了，通过放弃二值原则以使得模糊陈述具有真和假之间的某个值或根本就没有真值的办法，也无助于解决模糊性问题，而且恰恰会造成相反的情况，即妨碍我们找到问题的解决之道。

We adjust the appropriate bivalence cationic concentration, on the concentration of a Mg〓 or Ni 〓, to extend the supercoils of plasmid DNA pBR322 into rings.

采用改进的蒸发液滴中流体毛细流动法，用于展开和固定适于AFM研究的大环状DNA。

We have constructed a bivalence expression vector with SsNHX1 and AVP1 and transformed them into Arabidopsis. The results showed that the transgenic Arabidopsis plants 101 and 127 grew much better than wild type plants in the medium containing 100 and 200 mmol/L NaCl, which further indicated the important roles of Na〓 compartmentalization in vacuoles on plant salt tolerance.

2构建了同时含有液泡膜Na〓/H〓 antiporter与H〓-PPase基因的双元植物表达载体并转入拟南芥，筛选到在100和200mMol/LNaCl胁迫环境下生长发育均明显好于野生型的转基因拟南芥植株101和127，进一步验证了液泡Na〓区隔化在植物耐盐方面的重要作用。

The soluble tetra-alkyl phthalocyanine compounds have the following general structure, wherein Rn represents straight-chain or branching chain alkane, n represents the number of straight-chain or branching chain alkane, M represents center ligand of bivalence or more, L represents axial ligand, X represents the number of L.

该可溶性四烷基酞菁化合物符合如下结构通式：结构通式中，Rn代表直链或支化链的烷烃，n代表直链或支化链的烷烃的数目，M代表二价或二价以上的中心配体，L代表轴向配体，X代表L的数目。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。