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1)  G~*PP ring
G~*PP环
2)  PVC/PP g MAH
PVC/PP-g-MAH
3)  PP ring
PP环
1.
that if R is α-rigid then R is PP ring if and only if R[x;α,δ] is PP ring.
CHANYong-hong等证明了:假如R是α-rigid环,那么R是PP环当且仅当R[x;α,δ]是PP环。
更多例句>>
4)  PP-ring
PP-环
1.
Ore extensions of weakly GPP-rings;
弱GPP-环的Ore扩张
2.
It is proved that the ring [[Rs,≤,λ]] is a reduced left PP-ring if and only if R is a reduced left PP-ring and every S-indexed subset C of B(R) has a least upper bound in B(R);R is a ring without nonzero zero-divisors,then the ring [[Rs,≤,λ]] is Dedeking finite if and only if R is Dedeking finite.
证明了[[Rs,≤,λ]]是reduced左PP-环当且仅当R是reduced左PP-环,且B(R)的每个S可标子集C在B(R)中有最小上界;若环R无非零零因子,则[[Rs,≤,λ]]是Dedekind有限环当且仅当R是Dedeking有限环。
3.
It is proved that if R is an σ-rigid ring and the addition group of R is a torsion-free group,then the ring of skew Hurwitz series over R is a PP-ring if and only if R is a PP-ring and any countable family of idempotents of R has a least upper bound in B(R),where B(R) is the set of all idempotents in R.
研究了斜Hurwitz级数环的PP性质,证明了当R是σ-刚性环,且R关于加法做成的群是挠自由群时,R上的斜Hurwitz级数环是PP-环当且仅当R是PP-环,且R的每个由幂等元组成的可数集在R的全体幂等元组成的集合B(R)中有上确界。
5)  PP/PVC/PP-g-(St-co-MMA)
PP-g-(St-co-MMA)/PP/PVC
6)  PP/PP g MAH/PA6 blends
PP/PP-g-MAH/PA6共混物
补充资料：1-pp
CAS：20980-22-7
分子式：C8H12N4
分子质量：164.21
沸点：277℃
熔点：286-288℃

中文名称：2-1-哌嗪

英文名称：1-(2-pyrimidinyl)piperazine
1-(2-pyrimidyl)piperazine
1-pp
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