The research also shows how effective "target hardening" (ie, self-protection against crime) can be.
研究也向我们展示“目标硬化”(即防范犯罪的自我保护)的高效性。
During the tobacco hardening period bed of tobacco seedling was the falling target of alate aphids and was the main resource of tobacco virus spread by aphids.
炼苗期烟草苗床是传毒介体有翅蚜着落的靶子中心，是烟田蚜传病毒病的主要初侵染源，为防治烟草蚜传病毒病的关键时期。
Hardening depth related to the technical parameters and the quenching temperature field is an important target by plasma surface quenching.
硬化层深度是等离子弧表面淬火效果的重要指标之一，而硬化层深度与工艺参数、淬火过程中温度场的变化密切相关。
Hardening depth related to the technical parameters and the quenching temperature field is an important target by plasma surface quenching.
硬化层深度是等离子弧表面淬火效果的重要指标之一，而硬化层深度与工艺参数、淬火过程中温度场的变化密切相关。
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