It is an efficient obstacle to material exchange and avoids the skin's drying out.
它是物质交换的有效阻隔并防止皮肤干燥。
The Drum Pump offers a simplified material exchange, prevents sealant loss due to leaking and helps to maintain a clean workplace.
转子泵提供了简化的物质交换，防止了由于泄露而造成的密封剂损失，有助于保持清洁的工作环境。
Between the reservoir system and the external environment the constant material exchange makes the dynamic reservoir system more complex.
油藏系统与外界不断地进行物质交换，造成油藏动态系统更加复杂化。
The gas flow and the liquid complete the energy exchange and the material exchange between gas phase and liquid phase in the flowing process.
气流和液体在流动的过程中完成气相与液相之间的能量交换与物质交换。
The paper first expounds Marx and Engle's Thought of the relationship between Man and Nature:as a compositional part, Man belongs to Nature; during the material exchange, Man must obey natural laws;
本文首先论述了马克思恩格斯的人与自然关系思想：人属于自然界，是自然界的组成部分；
The exchange of material culture is bilateral.
物质文化的交流是双向的。
The host, whether it is a person, bird, or pig, provides a place for influenzas to make contact, exchange genetic material, and form new viruses.
无论是人、鸟还是猪，作为宿主都能为流感病毒提供接触、交换遗传物质和形成新病毒的场所。
The current winter season gives influenza viruses an opportunity to inter-mingle and possibly exchange their genetic material in unpredictable ways.
此一冬季使流感病毒有机会混合，并有可能以难以预测的方式交换其遗传物质。
And this means that the viruses that we're seeing can exchange genetic material with other viruses that are circulating. This can happen in humans, in pigs, in birds.
不幸的是变异发生了，这意味着我们寻找的病毒跟流通的其他病毒会改变遗传物质，这可以发生在人类、猪和鸟类上。
Material on Google's services has minimal protection because Google's business model is to provide this information in exchange for AD revenues, Enderle pointed out.
Google服务中的用户材料所具有的保护措施微乎其微，因为Google的商业模式是提供信息，用以交换广告盈利，Enderle指出。
Over the past seven months, the system has accelerated the exchange of genetic material, with more than 90 000 transfers of plant genetic material within the system.
在过去的七个月中，该系统加快了遗传材料的交换，在该系统内完成了90000余次植物遗传材料的转让。
Request the student also to exchange mutually each from different reading material.
并要求学生相互交换各自不同的阅读材料。
The sertoli cell is the central point of exchange information and material.
支持细胞在生精细胞发育中，处于信息和物质交换的中心地位。
Water purification material Series: if Quartz sand, Activated Carbon, Manganese sand, Anthracite, and ion exchange resins.
水处理填料系列：如石英砂、活性碳、锰砂、无烟煤和离子交换树脂。
The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.
介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。
The exchange of commodities is the major cause for the output and input of energy and material between agro-ecosystems.
商品交换是造成农业生态系统间的能量和物质输出及输入的主要原因。
The edge density, shape index and fractal dimension index is high, the patch shape is complicated, which shows that the material and the energy exchange can be carried on preferably.
边缘密度、形状指数和分维数比较大，形状复杂，可以和较多的异质性斑块相连接，能较好地进行物质和能量的交换。
Ion exchange fiber is a kind of material whose function covers ion exchange, absorption, dehydration, catalysis and decoloration.
离子交换纤维是一种纤维状离子交换材料，其功能包括离子交换、吸附、脱水、催化、脱色等。
Increases in the number of infections in humans increase opportunities for the avian and human strains to exchange genetic material.
人类感染病例的增多又增加了禽流感毒株与人类流感毒株交换基因物质的机会。
Piezoelectric ceramic is a function material which can exchange energy between mechanic and electricity.
压电陶瓷是一种可实现机械能与电能相互转换的功能材料。
Genetic engineers transpose or exchange bits of hereditary material from one organism to the next.
遗传工程师将某一生物的小段遗传物质调换到另一生物，或与其互换。
The exchange of material culture is bilateral. Europe, in return, had exported various commodities and plants through the Silk Road, meeting the needs of Chinese market.
物质文化的交流是双向的，欧洲也通过丝绸之路出口各种商品和植物，满足中国市场的需求。
The traditional impermeable hardening retaining wall cut off the exchange of material, energy and information between rivers and coasts, and hinder the mutual supply between river and groundwater.
传统的不透水性硬化挡墙切断了河道与岸边之间的物质、能量及信息的交换，阻碍了河道水体与地下水体的相互补给。
Business exchange, old comrades holding material and eyes, jump directly to the core part of intensive reading, a multiplier;
开业务交流会，老同志们拿着材料扫两眼，直接跳到核心部分精读，事半功倍；
Ion-exchange fiber is a new type of functional material, which can be used effectively to absorb heavy metal of sewage.
离子交换纤维是一种新型的功能纤维材料，能够有效地吸附污水中的重金属离子。
Both parties will re-negotiate the price BCS of the raw material price fluctuating exchange rate alternating and market price exceeding certain range.
原材料价格波动调整，汇率变动，产品市场价格变化超过一定限度，双方会对产品价格重新协商。
Both parties will re-negotiate the price BCS of the raw material price fluctuating exchange rate alternating and market price exceeding certain range.
原材料价格波动调整，汇率变动，产品市场价格变化超过一定限度，双方会对产品价格重新协商。
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