But many defects exist in the pear industry such as unreasonable varieties structure, low yield per unit area, the shortage of high quality fruits, poor benefit and so on.
但是，从整个梨产业结构来说还存在不少问题，如品种结构不合理，单位面积产量低，优质果少，经济效益差等。
The degassing tower is the equipment of metal chemical industry to ensure continuity, high quality and high yield in hydrogen fluoride production.
脱气塔是确保氟化氢生产连续、优质、高产的金属化工设备。
Grass industry: improvement of natural grassland and planting of grasses high in yield and quality on artificial grassland.
草业：培育改良天然草场，在人工草地引种高产优质牧。
In China, fast-growing and high-yield plantation has been figured into national important policies of technology and industry.
在我国，速生丰产林工程已经被列入我国林业重要的技术政策和产业政策。
In China, fast-growing and high-yield plantation has been figured into national important policies of technology and industry.
在我国，速生丰产林工程已经被列入我国林业重要的技术政策和产业政策。
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