衍生物

The polymeric soil amendmentswere applied in increasing soil value,and reclamation of saliane sodic soil,and greeningdesert,and controlling water and soil erosion,and amending arid and semiarid soil,andincreasing fertilizer utilization rate and crop yield,etc.

本文研究了淀粉接枝共聚物、羧甲基纤维素接枝共聚物、壳聚糖接枝共聚物、聚丙烯酰胺及其衍生物等对赤红壤的改良作用，揭示了赤红壤在这些聚合物作用下理化参数的变化规律。

The paper prices bond and bond option, analyzing dynamic interest rate, regime-switching and option pricing. According to the affection of regime-switching to interest rate derivative pricing, the paper deduces the partial differential equation of bond pricing with Ito lemma, and obtains characteristic function and recursion equation of bond option.

从利率动态变化、结构转换和期权定价三个方面进行分析，对结构转换下的债券和债券期权进行定价，考虑了结构转换对利率衍生物定价的影响，利用Ito引理获得债券定价的偏微分方程，并得到债券期权定价的特征函数与递归等式。

Many other companies use cheaper alternatives such as retinol derivatives, which are less effective.

许多其他公司使用价格比较便宜的替代品，如维生素A衍生物，这是不太有效。

A series of alkyl rhodamine B esters were designed and synthesized from rhodamine B.

以罗丹明B为原料设计合成了一系列的烷基罗丹明B酯衍生物。

A derivative, retinaldehyde, is a component of the visual pigments , including rhodopsin, in the retina.

衍生物网膜质是视觉色素的成分，包括视网膜中的视紫红质。

A derivative, retinaldehyde, is a component of the visual pigment s, including rhodopsin, in the retina.

衍生物网膜质是视觉色素的成分，包括视网膜中的视紫红质。

It is shown in this paper that native ribonuclease and proinsulin can be nearly quantitatively formed catalyzed by PDI from a mixture of their S-sulfonated derivatives independent of the presence of each other.

我们研究了在体外PDI同时催化RNase和胰岛素原的S-磺酸型衍生物形成天然二硫键，结果表明，在合适的条件下，两者形成天然二硫键的产率互相不受影响，因此，我们推测PDI在生物体内可以同时催化多种蛋白质二硫键的形成。

Methods The rat cerebral ischemia was induced by intravenous injection of rose bengal integrated with cold light source irradiation on sensorimotor cortex.

异亚丙基莽草酸(3，4-oxo-isopropylidene-shikimic acid，ISA)是从中药木兰科植物八角茴香中提取的有效成分莽草酸的衍生物。

In this paper, the structures, biological activity and total synthesis of rotenone derivatives have been reviewed.

对天然鱼藤酮类衍生物的结构、活性和合成方面的研究分别进行了概括。

RRR-α-tocopheryl succinate , a derivative of natural vitamin E, is a potent inhibitor of various cancer cell types in vitro and in vivo.

维生素E琥珀酸酯是天然维生素E的衍生物，因其能够抑制多种肿瘤细胞的生长、对正常细胞无不良影响而倍受关注。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。