探讨了麦角甾醇作为评价粮食质量安全指标的可行性。
The feasibility of ergosterol as an index to estimate grain safety degree was discussed in this thesis.
目的探讨妊娠时间作为妊娠早期生殖损伤观察指标的可行性。
Objective In order to observe the practicality of time to pregnancy as a screen indicator for early reproductive damage.
目的探讨唾液潜血试验作为牙龈炎症指标的可行性及其意义。
Objective to study the feasibility and significance of using a salivary occult blood test to detect the presence of gingival inflammation.
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