注塑工必须认识过快填充速度、不足注塑压力、过高融化温度和不充分挤压的危害性。
The molder must recognize the dangers of excessive fill speed, insufficient injection pressure, excessive melt temperature, and inadequate packing.
受到试验设备和方法的限制，当前对高速及超高速磨削加工的认识仍不充分。
At present, high and super high-speed grinding can not be understood completely, under the restriction of experimental apparatus and methods.
目前，对于肾母细胞瘤血管生成活性及其调节因素的认识尚不充分。
To date, the angiogenesis activity of nephroblastoma and its regulators have not been well defined.
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