查询词典 presence

In order for the altruist not to be exploited by non-reciprocaters, it would be expected that reciprocal altruism can only exist in the co-presence of mechanisms to identify and punish "cheaters".

为了使利他主义者不被非互惠者们利用，可以预期，互惠利他主义只能在查明和惩罚"骗子"的机制都存在的情况下发生。

Second,2-methyl-1-phenyl-1-pentanone was synthesized with benzene and isocaproyl chloride in the presence of anhydrous aluminum chloride as a catalyst .

其次，以无水三氯化铝为催化剂，苯与2-甲基戊酰氯反应合成了2-甲基-1-苯基-1-戊酮

The researchers detected their presence by checking for chemicals produced only by amacrine cells.

研究人员发现它们的存在检查化学品生产只能由无长突细胞。

Make use of the trait of aqueous polymer can separated two phases with solution in the presence of inorganic salt, carmine and amaranth was transferred polymer phase.

利用水溶性高聚物的水溶液在无机盐存在下可分成两相的特点，将胭脂红和苋菜红转入高聚物相，消除了其它物质的干扰。

This finding corresponded to the immunohistochemical data showing the presence of phosphorylated forms of p38, c-Jun N-terminal kinase, and extracellular signal-regulated kinase during ameloblast differentiation.

这个发现与免疫组织化学数据相符，显示在成釉细胞的分化过程中，p38磷酸化形式，c-Jun氨基端激酶以及细胞外信号调节激酶均有表达。

For instance, one of the key symptoms, such as amenorrhoea or marked dread of being fat, may be absent in the presence of marked weight loss and weight-reducing behaviour.

例如，病人可能有明显的体重减轻，和引发体重减轻的行为，但缺少一些厌食症的关键症状，例如无月经或明显地恐惧肥胖。

At most time, especially at the presence of public, he always smiles amiably and looks kindness.

大多数时候，尤其在公众面前，他总是露出平易近人的微笑，显得和蔼可亲。

The model has a good prediction at lower temperatures, while it is bad at higher temperatures where the solid phase was no existing and peptide product would be hydrolyzed because of the presence of amidase activity.

这是因为该模型未能考虑在偏高温度范围内酰胺酶活性对肽产物的水解作用，但这并不影响该模型对低温下肽合成产率变化的良好的预测性能。

Polymerization of norbornene was carried out in the presence of a catalyst system consisting of amidogen substituted mono(η~5-cyclopentadienyl)titanium/methyl aluminoxane.

采用胺基取代单茂钛{Cp~*TiCl_2N[Si(CH_3)_3]_2}与甲基铝氧烷组成催化体系催化降冰片烯聚合，得到有一定结晶结构的、可溶的聚降冰片烯。

The anionic polymerization of octamethylcyclotetrasiloxane (D4) catalyzed by tetramethyl ammonium hydroxide in the presence of water under conditions of high temperature and oxygen-off was investigated.

以八甲基环四硅氧烷为单体，四甲基氢氧化铵为催化剂，微量水为链封端剂，进行有水条件下环硅氧烷阴离子开环聚合。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。