A series of new aromatic poly(amide imide)s PI-P IV containing phthalazinone moieties are synthesized from the novel diamines I - IV by direct Yamazaki polycondensation.
设计将扭曲、非共平面的杂萘联苯结构引入聚芳酰胺亚胺的大分子主链，获得了耐高温、可溶解的新型聚芳酰胺亚胺。
She′s on the board of a Raspberry Pi which produces very simple and cheap computer designed to encourage children to become involved in programming.
也是树莓派公司的董事会成员，该公司致力于设计生产简单廉价的电脑以鼓励儿童积极参与编程学习。
Objective To explore the significance of glutathione S transferase (GST pi) in the early diagnosis of colorectal carcinoma.
目的探讨谷胱甘肽S-转移酶（GST）在大肠癌早期诊断中的价值及意义。
The voltage of the capacitance which is on the DC side of the inverter is stabilized by using PI control strategy, which ensures the DSTATCOM 's good current tracking performance.
应用PI控制使逆变器直流侧电容电压保持稳定，保证DSTATCOM良好的电流跟踪性能。
The group of severe preeclampsia SRA PI, RI and S/D values than the control group and the mild and moderate PIH group were significantly higher, the difference was significant(P<0.01).
⑶重度子痫前期组SRAPI、RI和S/D值较对照组及轻度妊高征组、轻度子痫前期组均明显升高，具有显著性差异（P〈0.01）。
The group of severe preeclampsia SRA PI, RI and S/D values than the control group and the mild and moderate PIH group were significantly higher, the difference was significant(P<0.01).
⑶重度子痫前期组SRAPI、RI和S/D值较对照组及轻度妊高征组、轻度子痫前期组均明显升高，具有显著性差异（P〈0.01）。
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