1) delayed-hardening agent
延时固化剂
1.
The principle of the delayed-hardening of the network laminated sand, the sieving of new types of resins,the preparation of new types of laminated sands and the sieving of delayed-hardening agents are discussed,and the related properties of the network laminated sand is investigated in which the sieved delayed-hardening agent is added.
介绍了网络覆膜砂的延时固化原理、新型树脂的筛选、新型覆膜砂的制备、延时固化剂的筛选,以及加入网络剂后各种相关性能考察。
2) fixed delay
固定延时
3) Delay Cementing
延时固井
4) retardation of curing
延迟固化
5) delayed coagulant
迟延凝固剂
6) quantization time-delay
量化时延
1.
The MCU is used for the center controller,achieving high accuracy frequency measurement by methods of multi-cycle synchronism and quantization time-delay.
提出了一种高精度频率测量系统的设计方法,应用单片机技术将多周期同步法和量化时延法相结合,实现了频率的高精度快速测量。
补充资料:120固化剂
N-羟乙基乙二胺又称β-羟乙基乙二胺,俗称120固化剂,结构式H2N(CH2)2NH(CH2)2OH,分子量92.06。无色或淡黄色透明粘性液体,微有氨气味。呈强碱性。有吸湿性。与水、乙醇混溶,微溶于乙酸。能从空气中吸收二氧化碳。低毒.LD504032mg/kg。
用作环氧树脂的室温快速固化剂,参考用量16~18phr,固化条件RT/10h或80℃/3h。
贮存于阴凉、干燥的库房内,防潮。
用作环氧树脂的室温快速固化剂,参考用量16~18phr,固化条件RT/10h或80℃/3h。
贮存于阴凉、干燥的库房内,防潮。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条