holder n. 1.持(票)人;(土地、权利等的)所有人,货主。 2.烟嘴;(笔)杆。 3.台座,架;夹;储存器。 a holder of an office 负责人。 a record holder 记录保持人。 a share holder 股票持有人。 a bit [drill] holder 【机械工程】钻套。 a cigarette holder 烟嘴。 a pen holder 笔杆。 a gas holder 装气罐,贮气室。 a lamp holder 灯座。 a mirror holder 镜架。
sample n. 1.样品,货样。 2.标本;榜样,实例。 3.【统计】典型取样,抽检查。 4.【电讯】信号瞬时值。 5.【冶金】 〔 pl. 〕 锌华。 That is a fair sample of his manners. 那就是他的典型态度。 a light sample 光脉冲。 up to sample 1. 和样品一样[相符]。 2. 可以接受的,可以同意的。 vt. 从…取样,从…抽样;提供;货样;对…进行抽样检查。
This alloy has been used for making sample holders and in the construction of associated apparatus . 这种合金已经用于制作样品支架和构成有关的器件。
The sample holder removes easily with four screws 试样夹通过四个螺丝钉固定,非常便于移动。
The mms raman spectrometer has a sample holder with cover for operation in full ambient light without affecting performance Mms拉曼光谱仪拥有一个试样夹,该固定器的遮盖物使分光在任何环境光线条件下都可以运转而且不会影响其表现。
The sample holder ' s z - axis adjustment makes it easy to find the maximum signal strength , and a safety cover rotates when needed to block the laser 试样夹在z轴方向上的调整使其能够方便地发现最大信号强度,此外,当需要阻断激光的时候安全保护罩将会旋转。
We select crm without coal as reference ; select semi - dynamic atmosphere to operate machine ; use the method fixing the temperature of hearth and that of sample holders when the analysis begins , which ensures the consistency of heating samples ; adopt the dta curve of " at - t " to analyzing crm heat , which decreases possible influences from the fluctuation of heating velocity ; draw conclusions that crm proportion and granularity influence the analysis little , but not crm moisture and coal species ; advise that there be a warm - up to the crm with much moisture before analysis and a modification to the crm with variable species of coal ; then obtain the feasible operation conditions and operation curve ( together with the curve function ) 选用白生料作标样;选用准动态测定气氛;采用恒定炉膛温度( 650 )和固定支持器初始温度( 60 )的方法,确保了样品受热过程的一致性;采用“ t ? ? t (时间) ” dta曲线分析生料热,减少了升温速率的微弱变化对测定结果的可能影响;得出生料配比和细度对差热仪测定结果影响小、生料水分和煤品种影响大的结论,并提出对大水分生料测定前要进行预热处理、对不同品种煤的测定结果要进行修正的建议。最终,得到了差热仪适宜的工况条件和工作曲线(及方程) 。
We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder , select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0 . 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware , for example temperature controller & transporter , signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data . in order to obtain the reasonable operation conditions and operation curve , we have also done many theory analysis and experiment discussions 通过理论和试验探讨,选用镍铬合金电阻丝作为加热元件,配以陶瓷质埋入式炉膛;选用陶瓷质小尺寸扁平?圆盘均热块体型样品支持器;选用0 . 5mm丝径镍铬?镍硅热电偶( k )作为测温元件;热电偶对称安置在样品支持器容器的中部;选用硅酸铝耐火纤维作保温材料;合理选用和设计了温度控制器、温度变送器、信号放大电路等硬件;采用升温曲线来控制炉膛供热过程;采用最小二乘法非线性回归与分段函数相结合的曲线模拟方法,进行图形处理。