pmma助记

The production of hairdressing scissors which are produced by a metal injection moulding route, using a 440 type hardenable stainless steel powder and a PEG/ PMMA composite binder system has been investigated.

用金属粉末注射成型的方法制备高硬度合金剪刀，其喂料使用440型不锈钢粉末和PEG/PMMA复合粘结剂制成。

The difference of thermomechanical coupling effect is the cause to result in IR feature difference between rock and PMMA.

两种材料热力耦合机制不同是导致受力红外辐射特征差异的根本原因。

The experiments show that C 60 can improve effectively the sensitivity of the thermo-optic ( TO) effect of PMMA, and calorescence coefficient can reach-3.4 × 10-4/ ℃.

实验表明：C60可有效提高有机玻璃热折变的灵敏度，热光系数达-3.4×10-4/℃。