the researchers analyzed data from dozens of studies to determine how planting new biofuel crops can influence the carbon content of the soil.
研究者分析了几十项研究已得出的数据,来确定种植新的生物燃料作物如何影响土壤的碳含量。
the results show that p/m valve seats using this technology has high density and high carbon content , and their microstructure are martensite , bainite and network carbide.
结果表明,采用该工艺可获得高密度、高碳含量、具有马氏体、贝氏体和网状碳化物组织的粉末冶金气门座。
trs and hardness of cemented carbide as substrate decrease with the increase of alloy carbon content which depends on the initial carbon content and sintering atmosphere.
基体的性能受碳含量和烧结气氛的影响,随着合金碳含量的增加,合金的抗弯强度和硬度依次下降。
low carbon content and rare earth modification to improve the morphology and distribution of carbide are both advantageous.
低碳含量,稀土变质处理改变碳化物为断开分布的板块状都可起有利影响。
gds testing results indicate the carbon content of the surface reaches 29.8%, the carbon content in the alloyed layer emerges in gradient distribution too.
辉光放电光电子谱仪(gds)渗层成分检测结果表明表面含碳量可达29.8%,合金渗层的碳含量也呈梯度分布;
sec「s executive director, howard shaw, said the label will encourage businesses to take steps to reduce the carbon content of their products and services.
新加坡环境理事会执行理事霍华德·肖表示,该标签能鼓励相关企业进一步降低他们的产品或者服务的碳含量。
the building of the prediction model for end-point temperature and end-point carbon content has been detailed introduced.
文中分别对终点温度及终点碳含量预报模型的建立及网络的训练作了详细的介绍。
the results show that the carbon content and carbusintering temperature are the main parameters that influence the formation of gradient structure.
结果表明:在本实验条件下,初始碳含量与渗碳温度是影响梯度结构的主要参数;
the main conclusions are (1) under the test conditions an increase in carbon content (hence amount of eutectic carbides) increases the wear resistance at 800℃.
主要结论:(1)在本试验的磨损条件下增加碳含量将有益于提高800℃下材料的耐磨性。
the carbon content of macerals increases with increasing temperature.
煤巖组分中的碳含量随温度升高而增加。
since the carbon content of these steels is so high, parts made from high carbon steel are normally difficult to machine and weld.
由于碳在这类钢中的含量很高,用高碳钢制作的零件通常很难被加工和焊接。
and california has adopted a low-carbon fuel standard that will require oil companies to cut the carbon content of their petrol.
而且加州已经通过了低碳燃料标準,要求石油公司降低他们汽油中的含碳量。
on the upside, agriculture can also dispose of heat-trapping gases, by increasing the carbon content of soils.
从好的方面讲,农业可增加土地有机炭的含量,从而将温室气体固定下来。
about 90 percent of the world」s total carbon content has settled to the bottom of the ocean, primarily in the form of dead biomass.
全世界的碳有90%沉积在海底,主要都是通过这种方式进行的。
when evaluating the carbon content of forests, their biodiversity is taken into account.
在计算森林的碳含量时,生物多样性要考虑在内。