Soft and hard segments in polymer chains were well-distributed when acrylate modification and emulsification performed at the same time.
丙烯酸改性与乳化同时进行时，其聚合物链结构中软、硬段分布均匀；
When modification graft before emulsion dispersion in solvent was adopted, micro phase separation of soft and hard segments in molecular chains was enhanced greatly and its thermo-stability improved .
而采用在溶剂相中改性接枝再乳化分散的方式，分子链中软硬段的微相分离加剧，热稳定性提高。
The blending mechanical modification and blending process modification of soft and hard HPVC were studied systematically.
系统地研究了HPVC软质材料、硬质材料的共混力学改性和共混加工改性。
The modification of soft PVC with three elastomers-CPE, reclaimed rubber and EVA-741 is discussed. The experimental results show that the properties of soft PVC compound ware improved.
探讨了用氯化聚乙性（CPE）、再生胶和EVA—741三种弹性体改性软质PVC，结果表明，弹性体改性PVC后综合性能提高。
After the modification at PLC program, the soft reduction is achieved via hydraulic differential circuit and the billet quality is improved.
通过修改PLC程序，利用液压差动回路实现轻压下，提高了铸坯质量。
Shields that are modification of the one that Brunel developed for boring the Thames Tunnel are used in excavating through clay or soft rock.
布鲁内尔在挖掘泰晤士河隧道时所发明的盾构加以改进后用于在粘土和软岩地带挖掘隧道。
The physical measures are put forward for modification of hard and soft ware of converter gas recovery system, and good results can be achieved.
从完善软硬件设备等方面提出了提高二炼钢转炉煤气回收水平的具体措施，实施后可取得很好的节能效果。
The physical measures are put forward for modification of hard and soft ware of converter gas recovery system, and good results can be achieved.
从完善软硬件设备等方面提出了提高二炼钢转炉煤气回收水平的具体措施，实施后可取得很好的节能效果。
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