例如成本低廉的灌溉方式已经使印度很多地区的地下水干涸，化肥中高剂量的盐分残留在土壤内。

For example, cheap forms of irrigation have depleted the water table in many farm areas of India, while at the same time adding near-toxic levels of salts from fertilizers to the soil.

youdao

这些残留必须彻底清除。 先用高压淡水清洗除去螺旋桨表面的灰尘污垢和微量盐分。

The silicone anti foulingpainting system needs high requirements on the surface's cleanliness, So these residue must be cleared.

youdao

这些残留必须彻底清除。 先用高压淡水清洗除去螺旋桨表面的灰尘污垢和微量盐分。

The silicone anti foulingpainting system needs high requirements on the surface's cleanliness, So these residue must be cleared.

youdao