| 1. | Screws and screw tubes apply quality carbon steel , which is finely processed under multi - step heat treatment 螺筒螺杆采用优质碳素钢,经多级热处理和精加工而成。 |
| 2. | Unique joint start function with 852d + desoldering station and 863e preheater has same step heating to protect pcb and bga 独设联机开启功能, 852d +拆焊机与863e预热台同步发热,保护pcb及bga 。 |
| 3. | Two step heating selector gives rapid temperature increase control when required thus saning time & power i . e . start up in mornings 两段式加热结构设计,可视所需之温度增减电力,并配合特殊之发热构造,可省时省电。 |
| 4. | It has been found that a preferable orientation can be obtained while both the smco5 phase and the sm2co17 phase have deposited plenty in the two - steps heat treatment 而合适的两级退火热处理能使smco5和sm2co17永磁相充分析出,并形成一定的择优取向,从而可以显著提高薄膜的矫顽力。 |
| 5. | The block diagram of step heating - furnace speed control system is drawn , according to which the transfer function of the system is arrived at and the factors that affect the dynamic property of the system are analyzed in detail 摘要建立了步进加热炉速度控制系统的方框图,通过方框图求出了该系统的传递函数,并对影响系统动态特性的因素进行了详细分析。 |
| 6. | Because the argon ' s escape from authegenic and det rital illites take place under different temperatures , step heating method can separate two kinds of illites . our work was based on the sedimentary rock from the tarim basin and the tuha basin 通过对采自塔里木盆地哈德油田石炭系砂岩伊利石的定年研究,对该油田油气的充注时间进行了探索,取得了比较好的效果。 |
| 7. | The results of combined internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from : luobusha , angren and xiubugabu in yarlung zangpo ophilite zone are 177ma , 166ma and 173ma respectively . the 4lar - 39ar step heating spectra of rikangba ophiolite suggest that its formation age is also isoma . it indicates that there was a stronger regionally inagmatism during middle - early jurassic , and the time of i75ma was the main period of the magmatic event of yarlung zangpo ophilite 对邬郁盆地嘎扎村组火山岩剖面的年代学研究表明,该区后碰撞期火山岩的~ ( 40 ) ar - ~ ( 39 ) ar年龄为12 ? 14ma ,侵入其中的花岗岩脉的~ ( 40 ) ar - ~ ( 39 ) ar年龄为10 . 84ma ,与冈底斯西段前人研究资料对比,认为冈底斯带后碰撞火山岩时代有自西向东逐渐年轻的趋势。 |
| 8. | We deduce that it is a relic old crust that was brought upwards during the formation of neo - tethyan ophiolite . the step heating 40ar - ' 9ar spectra show that during 100ma , luobusha ophiolite suffered intensely alternation , which affected distinctly the k - ar system ; during 771ma some basalt formed in the country rock of xiubugabu ophiolite ; during 55ma , the pillow basalt of rikangba ophiolite affected by a strong thermal event ; all the variety of ages illustrates possible impacts of the subduction - collision between india and eurasia . through dissecting mainly the gabbro of luobusa ophiolite and studying the 40ar / 39ar ~ ( 40 ) ar ~ ( 39 ) ar阶段升温年龄图谱显示, 100ma左右罗布莎岩体经历了较强的后期蚀变作用,对其k ? ar体系造成明显影响; 77 1ma休古嘎布岩体围岩中形成玄武质火山集块岩; 55ma日康巴岩体岩石枕状玄武岩受到较强热事件影响;这些~ ( 40 ) ar - ~ ( 39 ) ar年龄上的变化显示了印度板块与欧亚板块俯冲?碰撞对该区的强烈影响。 |
| 9. | The author suggests that for those kinds of samples like ophiolite which formed in the underwater environment and had very low potassium content , it should be better to determine their formation age by the sm - nd method as it is less sensitive to alteration . however , the step heating 40ar - 39ar spectra could often reflect the influence of later geological events on isotope system 认为对蛇绿岩这类形成于水下环境,含钾极低的样品,其岩体的形成年龄宜选用对蚀变影响反应不明显的sm - nd方法测定;但阶段升温~ ( |
| 10. | In this work , zno thin films were prepared by sol - gel method on the glass substrate in order to study the influence of the preparation techniques on the crystallization , orientation and morphology of the films . we adopted a two - step heat treatment technique to optimize the micrcjstructure of the films , and subsequently discussed the forming process of the zno thin films 本论文研究了在载波片和si ( 001 )上溶胶凝胶旋涂法的制备工艺对薄膜的结晶、取向状况以及薄膜形貌的影响,探讨了溶胶凝胶旋涂法制备的氧化锌薄膜的形成过程,同时引入两步热处理方法来优化薄膜的结构。 |