在经过生长期的表皮茎上，施用茉莉酸能够促进各个伸长单位茎中次生乳管的分化。
In the epicormic shoot stem which passed a growth season, the secondary laticifer differentiation of all the extension parts was accelerated by JA application.
研究了碳纳米管的加入量与分散程度对复合材料的拉伸强度、拉伸模量、断裂伸长率的影响。
The effects of the content and dispersion of carbon nanotubes on the tensile strength, tensile modulus and ratio of elongation of the nanocomposites were studied.
它将封隔器与伸缩管设计成一体，采用V形膨胀石墨密封圈组成密封系统，确保伸缩管热力伸长时封隔器的密封性。
The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.
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