1) double orientation
双指向性
2) Shuangzhi
双指
1.
Shuanggui Shuangzhi:Relative Rationality and Limited Legitimacy;
“双规双指”:相对合理性与适法有限性
3) dual-indicator
双指示物
1.
Study on the dual-wavelength and dual-indicator catalytic kinetic spectrophotometry for determination of trace silver;
双波长双指示物催化动力学光度法测定痕量银的研究
2.
Dual-wavelength Dual-indicator Catalytic Spectrophotometry for Determination of Trace Copper in Water;
双波长双指示物催化光度法测定水中痕量铜
3.
A new dual-wavelength dual-indicator catalytic kinetic spectrophotometric method for the determination of manganese was studied.
通过测量630 nm和430 nm处催化反应体系和非催化反应体系吸光度的变化,利用锰离子浓度与两波长处吸光度差值的和呈线性关系,建立了双波长双指示物催化光度法测定痕量锰的新方法。
4) double indicator method
双指示法
5) Dual-indicator
双指示剂
1.
Dual-wavelength dual-indicator catalytic kinetic spectrophotometric determination of trace iron(Ⅲ);
双波长双指示剂催化动力学光度法测定痕量铁
6) common peak ratio
双指标法
参考词条
补充资料：产业的指向性
产业的最优区位应在各点区位因素引力的合力方向上（或引力最大的方向上）称为产业的指向性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。