首先是原料。
The first reason is local open feedstocks.
第一个原因是在本地开放性地获取原料。
Feedstocks include cotton blends, resins, films, belts, fibers, etc.
其原料包括混纺棉、树脂、薄膜、传送带、纤维等等。
The properties and use of feedstocks in ethylene unit are introduced in the article.
介绍了乙烯装置原料的特性及使用情况；
Technical innovation is done for feed system of cracking furnace for adapting various feedstocks.
为适应各种原料，对裂解炉进料系统进行技术改进。
These and other grasses have been proposed as high-energy alternative feedstocks for biofuel production.
它们和其它几种草被看作生物燃料生产的高能替代原料。
PET is made from two feedstocks, one of them an organic acid, the other ethylene glycol, which is relatively inexpensive.
PET由两种原料制成，一种是有机酸，另一种是相对便宜的乙二醇。
Processes of producing gasoline and LPG with dismutation catalyst used the light hydrocarbon as feedstocks were studied.
本文研究了以油田轻烃为原料，通过歧化催化反应生产汽油和LPG的工艺过程。
The effect of the amount of the catalyst used. on yield of ester ratio of feedstocks and reaction time was investigated.
考察了反应原料配比、催化剂用量、反应时间等因素对酯化的影响。
Based on the characteristics of ethylene unit, the suggestion about ideal feedstocks and solution methods is put forward.
根据乙烯装置的特点，提出了适合乙烯装置的原料和解决方法。
The prices of industrial fuels and feedstocks such as naphtha are not capped, yet demand for them is also growing strongly.
工业燃料和石脑油等工业原料的价格并未受到限制，但需求也在强劲增长。
Industrial biotech USES agricultural feedstocks, rather than petroleum-based ones, to produce chemicals, plastics and fuels.
工业生物技术用农业原料替代石油制品来生产化学制品、塑料和燃料。
In this paper, the recent progress in research on catalytic hydrogenation of the major terpene feedstocks is been surveyed.
综述了国内外主要萜类化合物催化加氢研究进展状况。
The physicochemical property of MLC 500 catalyst can also be adjustable for different feedstocks to achieve ideal product slates.
因此，对不同性质的原料油，可有效地调整MLC-500的物理化学性质，获得理想的产品分布。
Alkanes are the main constituents of oil and natural gas, and consequently are the principal feedstocks for the chemical industry.
链烷是油和天然气的主要成分，并且从而是化学工业的主要原料。
Three kinds of light oil were cracked as feedstocks on regenerated zeolite catalysts in a laboratorial fixed fluidized bed reactor.
以三种轻燃料油为反应原料，在实验室固定流化床反应器上用工业平衡催化剂进行催化裂化反应。
By using a variety of regional feedstocks for refining cellulosic ethanol, the fuel can be produced in nearly every region of the country.
通过使用各样各样的用于提炼纤维乙醇的地区性原料，国家的任何一个地区都能生产生物燃料。
When conditions permit, coal is to be chosen in change of feedstocks, and the Texacocoal-water slurry gasification process is to be employed.
在条件允许的前提下，应以煤为原料，采用德士古水煤浆气化技术。
The effects of catalyst composition and properties on yield distribution of catalytic cracking of coker gas oil containing feedstocks were studied.
探讨了以减压瓦斯油掺炼部分焦化蜡油为进料时催化剂组成及性能对催化裂化产品分布等的影响。
While some biofuel feedstocks, such as sugar, can generate significantly lower greenhouse gas emissions, this is not the case for many other feedstocks.
虽然一些生物燃料原料(如糖)的使用可以明显降低温室气体的排放，但对于许多其他原料而言，情况并非如此。
Grass trees and other biomass feedstocks consist of a mixture of cellulose hemi cellulose and lignin a tough material that helps plants keep their shape.
草、树和其他生物基原料是由纤维素、半纤维素以及维持植物外形的木质素组合而成的。
So is knowledge of biofuel resources and production, including the most appropriate feedstocks - all of which are critical in formulating a viable policy.
关于生物燃料的资源和生产的知识也是如此，包括什么是最合适的原料——所有这些知识对于形成一个可行的政策都至关重要。
The paper discussed the feedstocks and technical feature of cracking section of Guangzhou Ethylene Unit, and the optimized operation have been mentioned.
分析了广州乙烯裂解装置的原料及工艺设计特点，并提出优化运行的建议。
Grass, trees and other biomass feedstocks consist of a mixture of cellulose, hemicellulose and lignin, a tough material that helps plants keep their shape.
草、树和其他生物基原料是由纤维素、半纤维素以及维持植物外形的木质素组合而成的。
Instead, the price of biofuels has risen to that of petrol, and the price of corn and crude oil, the main feedstocks for the two, have converged (see chart).
相反，生物燃料的价格已增长到与汽油价格相当，而且它们各自的原料玉米和原油价格也汇集一处(如图所示)。
The properties and structures of the components in feedstocks for reforming reaction together with the differences in their reaction features were analyzed.
主要分析重整反应进料组分的性质和其结构，以及各组分反应性能之间的区别。
It is necessary to improve both feedstocks quality and operating conditions, and water washing has been proven as effective method for beating salt deposition.
预防结盐，要从改善进料和操作条件入手。用水洗涤是处理结盐的较好方法。
It is necessary to improve both feedstocks quality and operating conditions, and water washing has been proven as effective method for beating salt deposition.
预防结盐，要从改善进料和操作条件入手。用水洗涤是处理结盐的较好方法。
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