化学制剂

But there is a price to pay for using chemicals.

但使用化学制剂是要付出代价的。

Exogenous phytohormone and other chemical agents, which inhibit leaf senescence, are generally associated with the problems of cost and environment.

利用喷施外源激素及其它化学制剂可改善叶片的早衰，但这往往受生产成本和环境因素的制约。

The rest of the product will basically feature synthetics and chemical agents.

其余产品的基本特徵将合成和化学制剂。

Increasing concentrations of anthropogenic chemicals may just be one additional factor, he added.

河流中的人类化学制剂浓度不断增强可能也是一个因素，他补充道。

Vascular hyperpermeability is one of the important causein hypovole-mia and organs disfunction after various kinds of shock,and its treatment is still one of the problems in the medical field. For example,the operative methods of preventing hyperpermeability and plasm bleeding is still unreliable after severity burn,and traditional treatment just passively transfuses according to the burn clysis formula instead of inhibiting permeability by injecting drugs. The principal reason is that pathogenesis of vascular endothelial cell permeabilty has not been entirely revealed at the level of molecular biology.

血管通透性增高是休克时有效血容量减少和器官功能损害的重要原因之一，它的防治一直是医学界的一个难题，如在大面积烧伤时，至今未能找到一个简单有效的防治血管通透性升高和血浆渗出丢失的方法，传统的方法只是根据烧伤补液公式测算进行被动的补液来纠正，而不能依靠注射化学制剂来终止其渗出，主要原因是未能从分子生物学水平揭示血管内皮细胞渗出的机制。

The idea material should have some characteristics as following: no immunogenicity, no exclusion, lower anaphylaxis,nonvenomous,effctive,the same anatomical structure as the receptor organs, having less inflammation in the site of injecting and no shifting from the injecting site to other organs,easily practicing and reasonable cost.

近几年，注射治疗以其安全、简单、方便、创伤较小，在门诊即可施行的优点日渐引起了人们的重视，它是将药物或化学制剂注射到后尿道或膀胱内口周围粘膜下及肌层中，使尿道腔变窄、拉长和缩小，从而提高尿道阻力，关闭尿道内口，以有效控制尿流。

Results The clinical observation of 180 patients with entirely developed root apex of acute and chronic apical periodontitis shown that there was no significant difference comparing erythromycin ethylsuccinate-metronidazole-CP with FC in root canal sterilization, therefore, the irritability and poisonousness of the paste can be reduced by using erythromycin ethylsuccinate-metronidazole-CP instead of FC.

为了清除髓腔病源刺激物，促进根尖病变愈合，目前国内大多用甲醛甲酚进行根管消毒。甲醛甲酚属化学制剂，虽具有强烈的杀菌作用，但亦具有刺激性、毒性和抗原性等，而琥珀酸红霉素和甲硝唑在临床上已被证明对厌氧菌有明显疗效，对于根管内的消毒杀菌作用如何，研究报道不多。

The feed put in it and the waste matter and metabolites output of it have a series impacts on the sedimental environment.

主要污染影响因素包括有机质、化学制剂和营养盐等直接影响因素；溶解氧、硫化物、底质厚度增加等间接影响因素。

But chemical agents that remove discolouration or stains that cannot be removed by general laundering.

漂白剂只是能通过使污渍褪色的方式漂白的化学制剂而已，并不能去处污渍。

Knowledge about suing verities of chemicals and maintenance related to public facilities.

熟悉公共区域设备的维护管理知识，及各种化学制剂知识。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。