Low - frequency cables and wires with pvc insulation and pvc sheath ; part 7 : distribution wires with solid conductors , pvc insulated , polyamide coated , in singles , pairs , triples , quads and quintuples ; amendment no . 1 to publication 60189 - 7 : 1982 聚氯乙烯绝缘和聚氯乙烯护套的低频电缆和电线.第7部分:聚氯乙烯绝缘聚酰胺涂覆的实心导体单股双股三股四股和五股配电用线.第1次修订
On the french side , smoke rose among the groups that had cannons . one puff , a second and a third almost at the same instant ; and at the very moment when they heard the sound of the first shot , there rose the smoke of a fourth ; two booms came one after another , then a third 在法军那边，在拥有大炮的一群群官兵中冒出了一股硝烟，而第二股第三股硝烟几乎在同时冒了出来当传来第一声炮响的时刻，冒出了第四股硝烟。
Following with the condensing of chromatin , nucle us gradually elongates and spires . a large number of vesicles turn into glycogen granules behind mitochondria . the mature typical sperm of cipangopaludina chinensis , having monoflagella , consists of a spiral head with only one spiral buddle conformed of nucleus , a spiral middle piece with four s 中国圆田螺成熟典型精子单鞭毛，由头、中、尾三段构成：头段螺旋状，旋束由细胞核构成，仅单股；中段也呈螺旋状，旋束由线粒体构成，共四股；尾段非螺旋状，主要由糖原颗粒构成。
