The effects of X content on the conductivity, thermal conductivity, tin melting rate, dryness, and other physical properties of the new lead-free solder were studied.
研究了X含量对新型无铅焊料的导电性、导热性、熔锡速度和干燥度等物理性能的影响。
Bamboo has excellent physical and mechanical performance, and has the bibulous low expansion coefficient, dryness and deformation advantages.
竹材具有卓越的物理力学性能，并且具有吸水膨胀系数小、不干裂和不变形的优点。
Bamboo has excellent physical and mechanical performance, and has the bibulous low expansion coefficient, dryness and deformation advantages.
竹材具有卓越的物理力学性能，并且具有吸水膨胀系数小、不干裂和不变形的优点。
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