The humidity is relatively low.

湿度相对较低。

《柯林斯英汉双解大词典》

Relatively high winds and low humidity levels have also contributed to the rapid spread and expansion of fires.

大片的森林和草原都处于干旱状态给自然火灾带来了大量的燃料，相对较高的阵风天气和低湿度则给火灾快速蔓延提供了绝好机会。

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8 % of dry ingredient on moisture absorption performance at relatively low humidity, plasticizers of both high and low viscose 0.

测试了添加两种不同粘度增塑剂对坯料泥浆性能、吸湿性能及其它性能的影响，结果表明，在相对湿度较低的条件下，高粘度增塑剂干料0。

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