Continuous cropping barrier  连作障碍

Barrier of continuous cropping  连作障碍

Barrier to entry  进入壁垒

barrier to migration  迁徙障碍

continuous barrier  连续护栏

continuous barrier in foundation soils  地面连续屏障

diffusion barrier to nickel  镍扩散阻挡层

green technical barrier to trade  绿色壁垒

Patents as barrier to entry  专利形成之参进障碍

Technical barrier to trade  技术性贸易壁垒; 技术性贸易壁垒(TBT)

equivalent model to continuous girder  等效连续梁模型

Erosion due to continuous weld  溶蚀

land return to cropping  土地复垦

Obstacle to continuous planting  连栽障碍

Returning cropping to grassland  退牧还草

similar to TO-5 package  金属帽包装

simple support to continuous support  先简支后连续

Simple Supported-to-Continuous Girder  简支转连续梁

Simple-supported Beam to Continuous Beam  先简支后连续