They painted the underside of their planes with a black varnish.他们在飞机的底部涂上了一层黑漆.A roll of fat jiggled on the underside of her arm.她胳膊下侧有一层肥肉一颤一颤的。Clusters of tiny insects called aphides were to be found on the underside ...
The filter crucible become slim in the coned flande and dewater.滤饼在锥兰中逐渐变薄,得到进一步脱水.Its effect of dewater has bettered much than the traditional fixed vortex sieve.结果表明,较传统固定式旋流筛的脱水效果有明显改善....