水的硬度适中,似乎工作提供强大的繁殖和着色是最好的。
Moderate water hardness seems to work the best for robust breeding and coloration.
保留硬度适中的温度。
结果表明,桐油改性酚醛树脂的剪切强度、冲击强度较未改性树脂大,硬度适中。
The results showed that the shear strength and impact strength were superior to those of pure resin, and the hardness was mezzo.
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