其种间或品种间的分类鉴定和亲缘关系的研究为育种工作提供了一个早期的、辅助的、选择性的指标。
The researches about the classification and identification of their species and varieties have provided an early, subservient and selective index for breeding work.
着重阐述了利用数字选择性呼叫技术的船舶跟踪系统的组成结构及其工作原理、技术指标；
Next, the structure, the working principles and the performance of the DSC Ship Tracking System which has been developed by the author is mainly described.
化学选择膜作为化学传感器中最为重要的组成部分，直接影响到化学传感器的选择性、稳定性、重现性及响应时间等性能指标。
As the most important constituent of chemical sensor, chemical selective membrane directly affects chemical sensor selectivity, stability, repeating and responsive time, etc.
本文阐述选择性磁种絮凝工艺对美国蒂尔登铁矿石进行脱泥试验的研究，并给出最终稳定脱泥试验指标及研究结论。
The paper describes the desliming test on Tilden iron ore and gives out the final desliming indexes and the research conclusion of test.
方法：通过单侧颈内动脉冷灌注法，对7只猴建立了脑选择性深低温断血流模型，观察脑温变化时生命体征的变化，并监测脑温变化前后主要器官酶学指标变化。
Methods: 7 monkeys received selective brain cooling by unilateral internal carotid artery perfusion. Vital signs and essential enzymes of major organs were observed before and after operation.
经溶剂、乳化剂、稳定剂等选择性试验，确定最佳配方和质量技术指标。
Through experiments on the selection of solvents, emulsifiers and stabilizers, the best formula and quality standard is finally confirmed.
因此，以网室内单位叶面积产卵量为指标基本上能反映出黑刺粉虱对不同茶树品种的寄主选择性。
Therefore, the host preference of Alewocanthus spiniferus to different tea varieties could be basically reflected by the oviposition number per unit in the net laboratory.
同时以酯化反应为催化模型，考察了催化剂在酯化反应中的催化活性、选择性、稳定性等性能指标，并得出了制备此催化剂的最佳条件。
The catalytic activity, selectivity and stability of the catalyst for esterification were investigated. The results show that the refluxing-adsorption method is advantageous to prepare the ca…
选择性是评价气敏传感器使用价值的重要性能指标。
Selectivity is one of the most important performances in appraising the properties of gas sensors.
结果表明，采用选择性絮凝脱泥-阳离子反浮选流程闭路试验可获得铁精矿品位为65.50%，回收率为83.09%的较好指标。
The results showed that, an iron concentrate with a TFe grade of 65.50% and a recovery of 83.09% can be obtained by the closed-circuit bench test.
结果表明，采用选择性絮凝脱泥-阳离子反浮选流程闭路试验可获得铁精矿品位为65.50%，回收率为83.09%的较好指标。
The results showed that, an iron concentrate with a TFe grade of 65.50% and a recovery of 83.09% can be obtained by the closed-circuit bench test.
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