In a gas mask designed to guard against a biological threat, a very fine particulate filter is useful.

预防生物威胁时，优良的微粒过滤器对防毒面具非常有用。

youdao

The remaining two attributes, filter and systemId, enable more fine-grained control of the parsing.

其它两个属性filter 和 systemId 可以实现对分解流程的精确控制。

youdao

Consult respiratory therapist: a fine particulate filter can be added to some units.

咨询呼吸治疗师：罚款微粒过滤器可以被添加到一些单位。

youdao

Filter material: layer of fine gravel used in slope stabilization structures that allows water to escape and retains soil particles.

UNESCO: L O S S A R Y

Another has perfectly arrayed pores 3 nanometers across, a mesh so fine it is used to filter individual amino acids in the DNA sequencing process.

FORBES: The Science of Small

In humans the vocal tract acts as a filter on the sound from the source, and the "source-filter theory" held that the separate, fine control of the vocal tract to be the product of a long evolution in the development of the subtleties of speech.

BBC: Helium-huffing gibbons 'sing with soprano technique'