查询词典 presence

The cell growth and the releasing rate of urease from bacteria and actinomycete in the presence of different nBPT concentrations were examined.

研究了脲酶抑制剂nBPT对土壤中脲酶活性和细菌、放线菌生长及发酵产酶的影响。

Now you may be thinking,"Why do we need an action variable when I could just as well be checking for the presence of person or howmany?"

现在你或许会想"既然我也可以选择person或howmany是否出现，那为什么我们要用一个action变量呢？"

However, the action variable is a more conspicuous presence, insofar as its name as well as what it does—the code is easier to understand. The per- son and howmany variables are used for their values while the action vari- able is used as a flag.

然而，action变量代表了一种更明显的出现，不光是它的名字还有它的作用—其代码很容易理解。person和howmany变量都是对其值起作用，而action变量则被用作一个标志。

Just look at Sinopec's bid to acquire Swiss oil company Addax, which has a big presence in Africa.

不妨看看中石化集团斥资72亿美元收购Addax的交易，后者在非洲有规模可观的业务。

MQO silicone resin as raw material,one kind of conformal coating with high stability for electronic circuit board assemblies was developed,which showed short cure time in presence of a functional additive.

涂覆液固化时间短(20min内完全表干)，涂膜具有良好的粘附力且阻燃性好(氧指数为49%)，介电强度高(37kV/mm)，完全可以满足实际电路板涂覆生产线要求。

At the same time, sufficient and necessary conditions for holding the control system robust stability are analyzed in the presence of the process additive and multiplicative uncertainties often encountered in practice, and correspondingly, the on-line rule for tuning the adjustable parameters of the decoupling controller matrix is provided.

同时，对于实际中常见的被控过程的加性和乘性不确定性，分析了控制系统保证鲁棒稳定性的充要条件，从而给出在线整定解耦控制器矩阵的可调参数的规则。

In the presence of adenine, cytosine or thymine, the fluorescence intensity of CdSe QDs was qenched efficiently.

该论文的结果对研究CdSe 量子点与DNA的相互作用有一定的指导意义，但是：1。

Results: The most common locations of PIP were at the margin of both lower lobes and associated with local pleural thickening and adhesion. The density of nodule in which CT attenuation value was 15~60 HU (26.9±13.5HU) was lower than that of PLC. Most of them were round/round-like and irregular in shape. The interior density of lesion was inhomogeneous. The presence of calcification or multiple cavitations, straight margin sign, hole sign and without hilar and mediastinal adenopathy were of great significance in the diagnosis of such kind of disease.

结果：炎性假瘤多位于两肺下叶，邻近胸膜增厚、粘连，病灶密度偏低（平扫CT值15~60HU，平均26.9±13.5HU），与周围型肺癌比较有统计学差异，其形态以圆形／类圆形和不规则形多见，病灶内密度多不均匀，可见钙化及多发空洞，边缘呈平直状、周围见毛玻璃样改变及肺门纵隔无淋巴结肿大等征象对本病的CT诊断有意义。

However, chloroplast matK genes are indispensable since in nonphotosynthetic parasitic plant, Epifagus virginiana and fren, Adiantum capillus-veneris which chloroplast genome has rearrangememt, the chloroplast matK is functional even being a free-standing from with dismissed trnK exons.The chloroplasts of Psilotum, moss and liverworts all have trnK5'-matK-trnK3' structure, but it is found that matK is a pseudogene in hornwort Anthoceros formosae. Little is known in other lower land plants, it is the purpose of this thesis to examine the presence of chloroplast matK gene is these taxa.

叶绿体trnK5'-matK-trnK3'的结构在高等植物相当一致，但先前研究发现两个matK脱离trnK而存在的例子，像是叶绿体严重退化的寄生植物Epifagus virginiana及因叶绿体基因重组而导致trnK外显子丢失的铁线蕨，它们的matK仍然具有完整的开读框，显示了matK的确十分重要而不可缺失，藓苔类和松叶蕨也被证实具有trnK5'-matK-trnK3'的结构，但是在角藓中却发现其matK是伪基因。

The MAX2338 includes a low-noise amplifier with an adjustable high-input third-order intercept point (IIP3) to minimize intermediation and cross-modulation in the presence of large interfering signals.

它包括一个具有可调的高输入三阶交调点(IIP3)低噪声放大器，用以减少当前大干扰信号下的互调失真和交调失真。

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。