Optionally the olefinic naphtha has a low content of acids.

任选地，所述烯烃石脑油含低含量的酸。

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The non-olefinic resins may be chlorinated or non-chlorinated.

所述非烯属树脂可以是氯化的或非氯化的。

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Additionally, the light-sensitive monomer contains more than two olefinic bonds, so that the light susceptibility is improved and the UV exposure is reduced.

另外，所述感光性单体含二个以上的烯键式双键，可提高光敏感性并降低紫外线曝光量。

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