Alniphyllum fortunei is a fast growing broadleaf specie, which has straight stem form and can be used for many pur-poses.
拟赤杨是一种生长快，干形直，用途广的优良速生阔叶树种。
Calophyllum polyanthum is a reforestation species of Yunnan province with the quality of straight stem and good wood quality.
滇南红厚壳是云南新发掘出来的一种优质造林树种，其树干通直圆满，材质优良，是制作刨切单板的优质材料。
Why straight trip regulating valve stem smaller?
为什么直行程调节阀阀杆较细？
Globe pattern check valves should be used in horizontal pipe runs with the stem straight up.
截止阀结构的止回阀应该用于水平管道，阀杆垂直朝上。
On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.
本文应用虚位移原理，在充分考虑钻柱所处的特殊环境的基础上，考察了斜直井眼中钻柱屈曲的可能性。
On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.
本文应用虚位移原理，在充分考虑钻柱所处的特殊环境的基础上，考察了斜直井眼中钻柱屈曲的可能性。
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