Students' mathematics "double bases" and mathematics cognition base are not solid.
我国学生数学双基与数学认知基础并不厚实。
The heptane compound has a primary purpose as a plasticizer for double base propellant systems.
化合物庚烷的主要用途是作为双基推进剂的增塑剂。
This is a comment with 58 references on the plateau combustion mechanism of the double base propellants.
这是一篇关于双基推进剂平台燃烧机理的评论，参考文献58篇。
The effect of carbon black on burning properties of modified nitramine double base propellant was detailed in this paper.
分析了在硝胺改性双基推进剂中炭黑对其燃烧性能的影响。
The high temperature reaction centre above the burning surface of the double base propellants and its variety regulation are found.
实验发现了双基推进剂燃烧表面上方高温反应中心的存在和变化规律。
The grain distribution and thermal decomposition characteristic of RDX in RDX modified double base spheric small size propellants are discussed.
讨论了改性双基球形小粒药中rdx颗粒的分布和RDX热分解的特点，提出了RD X改性双基球形小粒药的燃烧机理。
The manufacturing technology of seismic charge with high detonation velocity containing single base propellant and double base propellant is researched.
研制含单基药、双基药的高爆速震源药柱+，并对其制造工艺进行了研究。
It is indicated by the tests that provided a suitable binder is selected, the design requirements can be met by assembling double base propellant chunks.
实验结果表明，只要选择适当的黏结剂，通过对双基药块进行黏合组型可满足设计要求。
The combustion catalyst adopted by ordinary double base propellant can adjust the burning rate. It's necessary to study further on the combustion mechanism.
该推进剂具有低特征信号、低易损性等特点，用一般双基药所采用的燃烧催化剂可调节燃速，深入研究其燃烧机理很有意义。
However, due to emphasis "double base" of maths 'teaching heavily, cultivating the students' ability to solve problems had been discussing without doing in fact.
然而，由于我国传统的数学教学对“双基”的过度重视，培养学生解决问题的能力曾一度只是纸上谈兵，没有落到实处。
The effects of TPUE on the mechanical properties, technique properties, combustion and energy properties of nitramine modified double base propellant are studied.
研究了热塑性聚氨酯弹性体对硝胺改性双基推进剂的能量性能、力学性能、燃烧性能以及工艺性能的影响。
The paper gives the performance characteristic of a new type modified double base solid propellant, and it is compared with the traditional double base propellant.
论文研究了一种新型改性双基固体推进剂的性能特点，并与传统的双基推进剂进行了比较。
By using DAD, the double base anti-settling dispersant, we produce semi-gloss paint of excellent performance in storage, dilute stability and homogeneous glossiness.
通过采用具有双基团分子结构的防沉分散剂DAD，制得了具有优异贮存稳定性能、稀释稳定性能和光泽均匀性能的哑光涂料。
Elastomeric modified cast double base (EMCDB) propellant, which has good mechanical properties and plateau burning effect, was successfully prepared by granule casting process.
用粒铸工艺制备出了力学性能好、具有燃烧平台的改性双基弹性体(EMCDB)推进剂。
Elastomeric modified cast double base (EMCDB) propellant, which has good mechanical properties and plateau burning-effect, has been first successfully prepared by granule-casting in China.
在国内首次用粒铸工艺制备出了力学性能好、具有燃烧平台的浇铸改性双基弹性体(EMCDB)推进剂。
The action mechanism of an organic matter to double base system propellant was discussed in this paper. The effect of this matter to combustion performance was studied by a series of experiments.
探讨了某有机化合物在双基系推进剂吸收工艺中的作用机理，用一系列实验研究了此工艺助剂对推进剂燃烧性能的影响。
Meanwhile, a Jordanian double agent on December 30th blew up both himself and his CIA handlers in a base in Khost, in Afghanistan.
同时，12月30日一名约旦籍双重身份特工在阿富汗的霍斯特基地炸死了自己和他的CIA顾问们。
The equity of this reinforced Lehman would have been $43 billion, roughly double the size of its old capital base.
这样，加强之后的雷曼公司的股权可以达到430亿美元，大约是原有资产基础的两倍。
The base model projects that deaths from communicable diseases (CDs) will decline by 50%, whereas deaths from both non-communicable diseases (NCDs) and injuries will more than double.
基本模型预测因传染性疾病(CDs)导致的死亡数将减少50%，而因非传染性疾病(NCDs)和伤害而导致的死亡将增加超过一倍。
This causes the device to double the current multiplication factor, reset the alarm using the current timer value as the base, and go back to waiting for the next event.
这造成设备把当前乘数加倍，用当前计时器的值作为基值重新设置闹钟，然后返回，继续等候下一个事件。
Playing second base for much of his career, he teamed with shortstop Pee Wee Reese in an outstanding double-play combination.
在职业生涯里，他大多数时候打二垒位置，并与游击手皮维里斯一起，结成出色的双杀组合。
It would double the size of HP's sales force and broaden its customer base, providing more potential clients for its services and consulting arms.
这将扩大销售人员的规模，拓宽消费者范围，为客户服务部门和咨询部门提供更多潜在的客户。
At the base of the groove, there is a single or double diameter hole, providing a sound path through the panel.
在该基地的沟，有一个单人或双人直径孔，提供一个良好的道路通过小组。
Scout carrying the intelligence will likely try and avoid direct combat on the way back to his base by taking a quieter route or one better suited to his double-jump abilities.
一个背著情报箱的侦查兵在返回基地时，会尽量避开直接冲突，因此他们会改走比较没敌人的路线，或是二连跳适合的路线。
While mounting capacitors on double-side PC board, the capacitors should be away from those unnecessary base plate holes and connection holes.
在双面线路板上安装电容器时，电容器的安装位置应避开多余的基板孔和过孔。
The results show that the crook of these propellants burning curves were caused by the difference of thermal decomposition behavior between the solid filler RDX and NC-NG double-base binder.
试验结果表明：NC、NG组成的双基粘合剂与固体添加物rdx在热分解特性上的差异是导致硝胺发射药燃速曲线转折的原因。
The mechanical properties of improved double-base propellants enabled one to envisage grain geometrics with large combustion areas and consequently high thrusts .
经过改进的双基推进剂的机械性能使我们能够指望获得大燃烧面的药柱几何形状，从而得到大推力。
The form of double colour effect transfer coating sofa leather, the base crust, the processing technology of double colour effect film and the influence factors in processing were discussed in detail.
论述了干法贴膜双色效应沙发革的构成，底基坯革制作，双色效应膜的加工技术以及生产中的影响因素等。
The theoretical calculation results of energy characteristics for smokeless modified double-base propellant with ACP show that ACP can decrease the energy of the propellant.
含a CP的无烟改性双基推进剂能量特性理论计算表明，ACP对推进剂的能量影响较小。
The theoretical calculation results of energy characteristics for smokeless modified double-base propellant with ACP show that ACP can decrease the energy of the propellant.
含a CP的无烟改性双基推进剂能量特性理论计算表明，ACP对推进剂的能量影响较小。
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