fixed nitrogen是什么意思

用法例句

In the paper, it has been described to determinate unreacted-nitrogen in the Ti(C,N) by the pluse heating-gas chroma to graphy method.

脉冲加热 -气相色谱热导法测定了 Ti( C,N )中的非化合氮。

Determination of total nitride in low-alloy steel;

低合金钢中总化合氮的测定

The concept of composition of finite automata is first proposed in finite automaton public key cryptosystem.

在有限自动机公开钥密码体制中首次提出了自动机化合的概念。

In the construction of cryptosystem of a pair of keys and cryptosystem which is based on identifcation,the composition of finite automata becomes a basic means.

主要讨论了有限自动机的化合与化合前两个有限自动机的弱可逆性,严格延迟步数,弱逆以及线性的一些关系。

It also discusses the invertibility of composition of FA.

主要讨论了有限自动机运算后的可逆情况,给出了有限自动机串、并联后为可逆(弱可逆,延迟有限步(弱)可逆)的若干条件,最后对有限自动机的化合运算的可逆性进行了特别讨论。

Study on catalytic synthesis of diethyl succinate by nanometer complex tungstophosphoric acid;

纳米复合磷钨酸催化合成琥珀酸二乙酯的研究

Macrokinetics study on gas-solid catalytic synthesis of anhydrous piperazine;

气固相催化合成无水哌嗪宏观动力学研究

44% and the combined phenol was 243.

44%、化合酚为243。