stem and stem extension 霸芯及驳管
stem extension assembly 阀杆延伸组件
valve stem extension 气门杆伸出部
stem a singled stem extension 霸芯及驳管
stem extension by terminal buds 顶芽接干
extension stem 伸长杆 ; 辅助杆
extension stem-operation 伸长杆操作
Adequate and rigid support must be provided for long stem extension units.
对于长阀杆的延长装置，需要提供适当的和坚固的支撑座。
In the epicormic shoot stem which passed a growth season, the secondary laticifer differentiation of all the extension parts was accelerated by JA application.
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。
The extension includes handwheel, non-rising stem, fittings and extensions to allow remote operation normally from above.
加长件包括手轮，暗杆，连接件和加长件，允许在上方进行远程操作。
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