1) ECD
当量循环密度
1.
With stead downhole pressure and improved ECD control,continuous circulation drilling technology co.
该技术采用顶部驱动,利用三重闸板连接器内闸板和旁路管汇的合理开合,保持泥浆不间断流动,同时,由液压钳完成上扣、卸扣等动作,从而保证了稳定的井眼压力和良好的当量循环密度,可以较好地应用于多种钻井工艺中。
2) equivalent
当量
1.
According to the standard for identification of major hazard installations(GB18218-2000) in China,and based on the definition and the classification of major hazards,an equivalent method is put forward in consideration of the inherent energy and educed energy of materials.
根据GB18218—2000《重大危险源辨识》标准,在重大危险源定义和分类的基础上,从物质的固有能量和诱发能量两方面考虑,提出了以当量法来确定重大危险源的方法。
2.
A method of calculating condensate equivalent gas volume is shown in this paper.
本文提供了计算凝析油当量气体体积的方法。
3) Equivalence
当量
1.
In order to analyse the calendar life of the aircraft from qualitatively to quantitatively,the technical key is the equivalence relation between the atmospheric environment exposed and tested, using the corrosion electric current I c as a scale of the corrosion environment of the metal structures.
为了使飞机的日历定寿从定性走向定量，关键技术是解决自然环境与试验环境间的当量关系。
4) milli-equivalent
"毫<克>当量,毫当量"
5) TEQ
毒性当量
1.
Investigation of sedimentation fluxes, TEQ and sources of PCDD/Fs in Qingdao coastal sea.;
青岛近海PCDD/Fs的沉积通量、毒性当量及来源
2.
In present work,concentration of Ah-receptor agonists in soil organic extract was measured by an ethoxyresorfin O-deethylase(EROD) bioassay,which was calibrated and expressed by the 2,3,7,8-tetrachlorodibenzo-p-dioxin(2,3,7,8-TCDD) toxic equivalent(TEQ_bio).
采用7-乙氧基-异吩唑酮-脱乙基酶(EROD)方法测试了北京郊区某再生水灌溉土壤中的芳烃受体效应物质,并用2,3,7,8-TCDD标定出相应的二英毒性当量(TEQbio)。
6) Epoxy equivalent
环氧当量
1.
The synthesis process of lignin-based epoxy resin was introduced, and studies were conducted on the effect of epichlorohydrindosage and reaction time on epoxy equivalent and lignin content.
简要介绍了以木素为原料合成环氧树脂的过程,研究了环氧氯丙烷的量与反应时间对环氧当量、木素含量等的影响。
参考词条
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。