1) pipe length-number
管长之数
1.
Most scholars after Shen Kuo followed Sima Zhen\'s idea of "novenary",which is obviously not so logic as Shen\'s explanation;some other people put forward the pre-Qin argument of "pipe length-number",which is found to be a "bold assumption" that opens up perspectives and irrelevant to Sima Qian\'s idea in this paper.
沈括之后的历代探索,大多追寻小司马"九分之寸法"说的思路,将其视作本质为数字律数的管长分数以十约成的管长寸分之数,即间接的管长之数,然其说明显不如沈括之说更符合数理;有的则提出了先秦"管长之数"说,将这组律数视作经过管口校正的、真正的管长之数。
2) long counter
长计数管
3) View on statement of maths teaching process
数学说课之管见
4) quarter wave resonators
四分之一波长管声腔
1.
Helmholtz resonators and quarter wave resonators are studied as the high frequency combustion instabilities suppression devices in liquid rocket engines.
本文针对抑制液体火箭发动机不稳定燃烧的声学装置——赫姆霍兹声腔和四分之一波长管声腔进行了研究。
5) long neutron counter
长中子计数管
6) pipe-line mileage
管道长度英里数
补充资料：长计
1.求取长远利益的谋略。 2.良谋。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条