物质

Degree, the risk posed by each toxic substance. OSHA's discussions of individual sub-found at various levels of exposure, but made no estimate of the risk of experiencingthose health effects; instead, OSHA provided a conclusory statement that the new limitwould reduce the "significant" risk of material health effects, without any explanationof how the agency determined what was significant.

OSHA 关于特别物质的讨论包含了那种物质各种各样的研究和各种各样影响程度发现的健康效应的研究总结，但对经历那些健康效应的风险没有做估计；反而， OSHA 提供了一个结论性的声明：新限制会减少物质健康效应&重大&风险，确定什么是重大的部门没有做任何解释。

Declarable Hazardous Substances are not prohibited at present, but required to declare

申报物质﹕当前不是禁用物质，但要求报告其在均质材料中质量百分比或PPM级含量的物质。

The Schiff base transitional metal complexes of various structures and their metallomicelles as peroxidase models for the phenol and phenolic derivant oxidation have been investigated. Some results are obtained from the studies:(1) the Schiff base transitional metal complexes have high catalytic activity for the phenol and phenolic derivant oxidation, and the structure of the complexes has a great effect on its catalytic activity;(2)a novel kinetic mathematical model for the complexes and their metallomicelles catalyzing the phenolic derivant oxidation has been established;(3) the feasibility and mechanism for the phenolic derivant oxidation catalyzed by the metallomicelle(as the mimetic model of peroxidase)have been discussed.

研究了冠醚Schiff碱金属配合物作为过氧化物酶的模拟模型对酚类物质氧化反应的催化作用，取得如下结果：(1)几种冠醚Schiff碱金属配合物对催化酚类物质氧化具有良好的催化活性，其中配体结构对其催化活性有较大的影响；(2)建立了金属配合物与表面活性剂形成的金属胶束催化酚类物质氧化反应的动力学数学模型；(3)探讨了金属胶束模拟过氧化物酶催化酚类氧化反应的可行性及其机理。

Diallyl disulphide was identified in these three cultures, which is a representative matter in volatile of garlic and has antimicrobial activity. So this matter is concluded one of the allelochemicals.

同时在这3种栽培方式中均检测到了二烯丙基二硫化物，这种物质是大蒜挥发油中典型的物质，且具有良好的杀菌作用，因此认为大蒜根系分泌也能释放这种物质。

Any non-physical or disincarnate entity , including the astral body , in order to function , in real time , close to the physical dimension ; must contain 以太 matter.

任何非物质或非肉身的实体，包括星体躯体，为了运作，在实时中，都靠近物质维度；它们必须包含以太物质。

Interdimensional Manifestation 维际显现 Any non-physical or disincarnate entity, including the astral body, in order to function, in real time, close to the physical dimension;must contain 以太 matter.

任何非物质或非肉身的实体，包括星体躯体，为了运作，在实时中，都靠近物质维度；它们必须包含以太物质。

Message of Chinese a network of rivers,"2009 dozenth a China International film and water treatment technology and equipment exhibition " will be in center of exhibition of Beijing China International to begin on October 14, what as this international film equipment exhibits is important postpone business, water treatment of contented family name and department of process solution business will reveal his to be in the another outstanding achievement of water treatment domain -- contented family name exceeds filter unit.

中国水网消息，&2009第十二届中国国际膜与水处理(通过物化方法去除水中一些物质的过程)技术暨装备展览会&将于10月14日在北京中国国际展览中心揭幕，作为此次国际膜装备展的重要展商，陶氏水处理(通过物化方法去除水中一些物质的过程)及过程解决方案业务部将展示其在水处理(通过物化方法去除水中一些物质的过程)领域的又一卓越成果——陶氏超滤装置(也称为超滤设备、超滤系统等)。

As one new rising mode of the economy development that according to the natural ecosystem material circulation method, circular economy requests the enterprise follow the ecological regulation, reasonable use the natural resources and the environment capacity, develop the economy on the foundation that the material continuously and circularly using, make the economic system brought into in the material circulatory process of the natural ecosystem harmoniously and carry out the economic activity ecotypically.

循环经济作为近些年兴起的按照自然生态物质循环方式进行的经济发展模式，要求企业遵循生态学规律，合理利用自然资源和环境容量，在物质不断循环利用的基础上发展经济，使经济系统和谐地纳入到自然生态系统的物质循环过程中，实现经济活动的生态化。

The growth of H. fusiformis was determined by weighting the fresh algae every two days and the photosynthetic oxygen evolution was assayed by a Clark-type oxygen electrode. To determine the contents of chlorophyll a and UV-absorbing compounds, methanol extracts from H. fusiformis were scanned from 250 to 750 nm. The concentration of chlorophyll a was calculated using the equation of Porra and the contents of UVAC per fresh mass were estimated by determining the ratio of UVAC to chlorophyll a according to Dunlap et al and multiplying the ratio of chlorophyll a content to fresh weight of the sample used.

羊栖菜的生长是通过每两天测量一次藻体的湿重来测定的，光合放氧是用Clark型氧电极测定的，为了测定藻体叶绿素a和紫外吸收物质的含量，从250 nm到750 nm对羊栖菜的甲醇提取液进行扫描，叶绿素a的浓度用Porra的公式计算，紫外吸收物质的计算是根据Dunlap的方法先计算紫外吸收物质和叶绿素a的比率，然后乘以每单位藻体叶绿素a的含量。

The result makes clear, 2 class give urban sewage plant on the molecular quantity interval that organic owner should center the dissolvability in water water in kDa, and the content of organic matter compares hydrophoby the element of content big; of organic matter measures hydrophily interval distributings different organic thing shows water to accept filter film flux and hold back rate having distinct effect, the organic matter under molecular quantity 2kDa causes accept filter film to appear water flux attenuation bigger, organic matter is held back rate is minor, the organic matter that amounts to 57.2%; element to measure 10 ～ 100kDa causes accept filter film to appear water flux attenuation gentlier, organic matter is held back rate is older however highest the organic matter that amounts to 73.8%; to kiss scanty sex to differ shows water to accept filter film flux and hold back rate having distinct effect, classics is right of velar surface obstruction determine, confirm cause film to appear water flux and the main material that hold back rate change to be hydrophoby material, and the change that hydrophily material causes is minor.

结果表明，城市污水厂二级出水水中的溶解性有机物主要集中在kDa的分子量区间上，且疏水性有机物的含量比亲水性有机物的含量大；分子量区间分布不同的有机物对纳滤膜透水通量和截留率有着不同的影响，分子量2kDa以下的有机物引起纳滤膜透水通量衰减较大，有机物截留率较小，达57.2%；分子量10～100kDa的有机物引起纳滤膜透水通量衰减较平缓，有机物截留率却较大最高达73.8%；亲疏性不同的有机物对纳滤膜透水通量和截留率有着不同的影响，经对膜表面阻力的测定，证实引起膜透水通量和截留率变化的主要物质为疏水性物质，而亲水性物质引起的变化较小。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。