1)  Medium oil
中质油
2)  difference between neutron and proton number
中质和
3)  sum of neutron and proton number
中质差
4)  concentrated mass
集中质量
1.
Dynamic characteristics of Beck s column with concentrated mass;
集中质量对Beck杆动力特性的影响
2.
Vibration of uniform and nonuniform rods connected to a concentrated mass;
系有集中质量的均匀与非均匀弹性杆的振动问题
3.
Solving the vibration problem of elastic rod with concentrated mass on one end by Laplace transformation;
再论用Laplace变换法求解端点系有集中质量的弹性杆的振动问题
5)  lumped mass
集中质量
1.
The mechanical admittance spectrums of the intact pile and all kinds of defective piles are computed largely according to the lumped mass model of the pile system.
根据桩基系统的集中质量参数振动模型,对完整桩和各种缺损桩模型的导纳谱进行了大量的正演计算,按照导纳谱特征与桩基的缺损类型及缺损位置之间的对应关系,编制了相应的判读软件DSP1。
2.
By means of a symbol of operation,the new analytical expressions of the frequency equation and the modal function of lateral vibration of a beam with lumped masses were derived.
引入运算符号 ,导得带任意个集中质量的梁弯曲振动频率方程和振型函数新的解析表达式 。
3.
This paper gives an accurate analytic method of lateral natural vibration of beams with lumped masses and elastic supports.
本文给出带集中质量和弹性支承梁横向固有振动的精确分析方法。
6)  neutron-to-proton ratio
中质比
1.
It is due to the effect of the difference of neutron-to-proton ratio , N/Z, of the systems.
因此把这种现象归因于系统中质比(N/Z)的影响。
参考词条
补充资料:皂化溶解油、肥皂油和调水油
分子式:
CAS号:

性质:又称皂化溶解油、肥皂油和调水油。金属切削油的一类。一般是淡褐色至深褐以液体或半固体。由在矿物油中加入适量的皂类乳化剂(如钠皂、钾皂、松香钠皂、松香皂或环烷酸钠皂)和少量稳定剂(如乙醇或甲醇)而成。使用时与软水掺合成稳定的白色乳化液。作用以冷却为主,润滑为次。用于车制、锯断、钻孔、磨制等金属粗加工。

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