Steel sealing strips were introduced to the lock gates in the canalized water-way of Lianjiang River in Guangdong Province instead of the traditional woo-den or rubber strips.
简介了广东连江梯级闸门止水由传统的木、橡胶止水改为钢止水的过程。
Steel sealing strips were introduced to the lock gates in the canalized water-way of Lianjiang River in Guangdong Province instead of the traditional woo-den or rubber strips.
简介了广东连江梯级闸门止水由传统的木、橡胶止水改为钢止水的过程。
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