propagation by transplanting tube转管繁育

By Using Tube Microreactor采用管式微反应器

administering by gastric tube胃管投药法

bridging by T tubeT管架桥

drainage by minute tube微导管引流

traction by bamboo tube竹筒牵引

Protevting surface by sinking tube沉管护壁

penetration controlled by immersed tube沉管控制贯入度

dewatering by rung tube well梯级管井降水