镜口率是光学显微镜的数值孔径,简写NA(numerical aperture) 或A,是物镜和聚光器的主要参数,与显微镜的分辨力成正比。干燥物镜的数值孔径为0.05-0.95,油浸物镜(香柏油)的数值孔径为1.25。
对热演化敏感的参数,例如,镜质体反射率,可从一口井的一定数量岩样进行测定。
A parameter sensitive to thermal evolution, e. g. vitrinite reflectance, is measured on a certain number of samples from a well.
粘连松解后伞端正常、输卵管通畅者妊娠率4 7 4 % ,若行腹腔镜下输卵管造口术,2 6例无一例妊娠。
The pregnancy rate of normal fimbria and unobstructed tube after lysis of periadnexal adhesion was 47.4%, 26 cases of laparoscopic salpingostomy had no pregnancy.
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