加热管

The key points of sensorless technology in PMBLDCM are to study a method which can detect rotor position accurately by simply method in whole speed range. After analyzing current sensorless methods of the PMBLDCM, it is found that those methods are successful at middle and high speed, but they often fail to detect rotor position at low speed when the back electromotive force is small or zero.

纵观目前的永磁无刷直流电机的无位置传感器控制方法，比较成熟而可行的方法多集中于电机在中高速区域运行时，能够较准确估计转子位置；电机处于低速、极低速、静止状态时电加热管，因为反电动势幅值较小或者为零，而无法正常工作。

Based on the advantages of low temperature hot water floor radiation heating system, the calefaction tube selection principle and notice proceeding are expounded.

根据低温热水地板辐射采暖的许多优点，阐述了低温热水地板辐射采暖系统加热管的选择原则及注意事项，建立了系统水力计算的数学模型，给出了四种常用管材的水力计算表。

The performance of device is dependent on the concentration of TiO2-nanotubes,appropriate concentration of TiO2-nanotubes can connect moles of C60 which afford more direct band pathway for carrier transport especially electron transport.

实验表明，TiO2纳米管的加入增强了器件的光伏特性，并且随着TiO2纳米管混合比例的提高，器件的电加热管短路光电流和光电转换效率也相应的提高了。

The new sieve tray tower of carrier gas evaporation can be installed with multiplayer sieve trays, and has double concentration ratio as compared with that of general sieve tray towers, and can be operated under vacuum conditions, which can avoid the leakage of acrylamide.

依据新方法开发的新型载气蒸发筛板塔可采用多层塔板操作，该塔与未设置加热管且塔板较少的情况相比，浓缩比可以提高1倍；采用负压操作，可以避免丙烯酰胺泄漏。

The oil-quenching tank uses the steel plate structure, has the square shape, the rectangle, the circular, in the fuel tank the installment has the electric heating tube, outside the trough the installment has the oil pump, the stainless steel disc heat interchanger, the automatic oil constant temperaturecontrols the warm cabinet, its principle of work: When the work piece enters fuel tank quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating waterto put through automatically, carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decreasetemperature the goal.

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

We have an annual output of 10 millions heaters and defrosted tubes, 50% of products are exported to more than 10 countries in the world.

公司年产优质加热管、除霜管1000万支，50%的产品远销全球10多个国家和地区。

On the structure a gleam of divides paragraph:⒃ of the lofty that show Po amuses Yan Tuo of time of collection of ⑿ of cut up with a hay cutter of ひ of deer of attentively of T of unoccupied place lofty is fond of Wei Touchun of Tang blame discuss timing of frequency modulation of VVF of 訴 of let down with a rope of ⒌ of dream of take along sth to sb dominates electric machinery, dusting is even and adjustable the canal heats to warm up outside; enamel Yuan Gong fast, safe, clean, lukewarm accuse set, the job is reliable, convenient.

在结构上一线分三段：撒粉段、远红外加热段和复合段。在新工艺、新技术上采用微电脑VVVF调频调速控制电机，撒粉均匀可调；搪瓷远红外加热管升温快、安全、清洁、温控设定，工作可靠、方便。

The nest of tubes consists of tube sheet, baffle, heating tube and so on.

管组由管板、折流板、加热管等组成。

The nest of tubes consists of tube sheet, baffle, U-heating tube and so on.

管组由管板、折流板、&U&型加热管等组成。

The grain is heated by conduction as it flow over the steam-heated pipes, and is subsequently treated with ambient or slightly-heated recycled drying-air.

谷物的热传导，因为它流了蒸汽加热管，并随后处理空气或微循环加热干燥的空气。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。