The inflammation retardation period, combustion continuance period and combustion cyclic variability of compound alcohol fuels is greater than that of gasoline.
醇类混合燃料的着火延迟期、燃烧持续期、燃烧循环变动都大于汽油，放热规律与汽油相似。
Poly(L-lactide)(PLLA) was synthesized by ring-opening polymerization of L-lactide using cyclic tin alkoxide compound as initiator.
以环烷氧锡化合物引发L-丙交酯开环聚合制备高分子量聚L-乳酸。
Saturated cyclic steroid and terpenoid compound is the better reductant.
含有饱和环的甾萜类是良好的还原剂。
The cyclic compound so obtained has profound effects upon the MW, MWD and functionability of the polymer product.
这些环化物对聚合产物的分子量、分子量分布和官能度都有较显著的影响。
The content of the cyclic ether compound is adjusted to 0.01 to 5 parts by mass based on 100 parts by mass of the ester compound.
具有带酯键的侧链的五元环或六元环的环状醚化合物，其中所述环状醚化合物的含量，按每100质量份所述酯化合物，调整到0.01至5质量份。
The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.
由邻位化合物生成的五元环络合物比由间位化合物形成的六元环络合物稳定性高，反应速度快。
And if there is a hydroxyl in ortho position of carboxyl, the oxygen of hydroxyl and carboxyl in ligand are bound to ti to form hexatomic cyclic compound.
而羧基邻位有酚羟基存在时，则配体以双齿形式与钛配位形成二茂钛六元环状化合物。
And if there is a hydroxyl in ortho position of carboxyl, the oxygen of hydroxyl and carboxyl in ligand are bound to ti to form hexatomic cyclic compound.
而羧基邻位有酚羟基存在时，则配体以双齿形式与钛配位形成二茂钛六元环状化合物。
应用推荐