The greater the tube-flexure after drawing is, the worse the wall-uniform effect and even the non-uniformity of wall thickness is aggravated.
空拔后钢管的弯曲度越大,均壁作用越小,甚至加剧壁厚不均。
The effect of the uniform curriculum is unclear.
统一课程表产生的效果尚不明显。
In order to obtain the expected sand cooling and humidifying effect, requiring sand in the boiling bed to flow in uniform.
为使型砂获得预期的冷却和增湿效果,要求型砂在沸腾床上均匀的流动。
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