河间市

在河间市一年可发生2～3代，1代历期为80～90天，以幼虫危害寄主叶片，总食叶量可达到406.86cm2／头。

It has 2 or 3 generations a year in Hejian . One generation lasts 80 ~ 90 days . The larva eats the leaves of its hosts .

1992年沧州地市合并，河间市由沧州市代管。

Cangzhou City in1992 to merge Hejian hosted by the Cangzhou City .

提高河间市汽车配件产业竞争力研究

The Study Of Advancing Industry Competition Of HE JIAN Auto Fittings

河间市交通及安全网络视频监控系统的设计

Design of Web-based Video Monitoring System in Transportation and Security for Hejian City

河间市地方性氟中毒病区井水的氟含量

Investigation on Fluorine Contents of Well Water in Endemic Fluorosis Area of Hejian City

陈式太极拳引入河间市中学体育课堂的必要性与可行性研究

The Research on the Necessity and Feasibility of Chen-style T'aichi Import into the Sports Classroom in Hejian Middle School

文章最后是对河间市电线电缆产业生态的实证研究，并提出生态改进的意见。

In the end of the text , we study the cable industry ecology of Hejian in demonstration and put forward the opinion of improving .

概括了农民自助组织的功能及河间市国欣农研会的基本情况。

It means that we summarize the function of the peasant self-help organization and the basic situation of the ' He-Jian agriculture research centre ' .