查询词典 heat conductivity

The dissertation designs a new type treble hole concrete block. Through adding the block holes number, its thermal resistance increases, but the coefficient of heat conductivity depresses.

本文研究设计了新的三排孔砌块块型，增加砌块的孔洞数，使之热阻增加，导热系数降低，并对其进行了试验研究。

In temperature range from 25 to 200 ℃, The heat conductivity along the grain of wood is approximately 2.4 or 3 times of that cross the grain. And this result is relative to composing orientation of the molecules interlink inside the cellular wall of wood.

在25～200℃内，热流平行于纹理方向的木材导热系数要大于其垂直于纹理方向的导热系数，前者是后者的2.4～3倍：这种差异与细胞壁内分子链结构的构成方向有关。

The plastic go down the hopper smoothly and is gripped by the thread of the screw. It is forced to go toward the direction of the gear end along with the rotation of the screw. A mechanical transferring process is formed. During the running of the plastic from the feed port to gear end, a high pressure is formed in the process of plastic curing due to the gradual decreasing of the thread depth and the resistance of filter gauze, splitter plate and gear end. The high pressure helps to press the raw material and improve its heat conductivity performance and the quick melting of the plastic, at the same time, the gradual increasing pressure can help the gas which is among material particles exhausted from the air holes.

在压力升高的同时，塑料一方面被外部加热，另一方面塑料本身在压缩、剪切、搅拌的运动过程中，由于内磨擦力也产生了大量的热，在外力和内力的联合作用下，塑料温度逐渐增高，其物理状态也经历了玻璃态--高弹态--粘流态的变化，一般地说来，在加料段中主要是玻璃态，在螺杆螺纹逐渐减少的中间部分压缩段中，物料主要处于高弹状态，同时也逐渐的熔融，而物料到压缩段后部和化段作用处于粘流态了，这时我们称塑料已完全塑化了，由螺杆推力作用将塑化的塑料定压定量的从机头中挤出。

The study provided 2 kinds of finish systems which were pouring and anchoring rock-wool panel respectively. In general, galvanizing steel-meshwork using machine anchor can use all kinds of Rock-wool panel made in China. The interface mortar used in Rock-wool can prevent worker's hand from hurting and improve the water-proof capability and bonding intensity of rock-wool panel. The low-heat conductivity of polystyrene foaming granule paste improved the integer and anti-crack of system. The 2 kinds of rock-wool system all can resolve the current rock-wool panel applied difficulty in outer-wall external thermal insulation.

研究提出了现浇和锚固岩棉板2种涂料饰面构造做法，其中采用机械锚固热镀锌钢网施工可充分利用国产各类型岩棉板；岩棉板的界面砂浆处理可起到防止岩棉纤维扎手、增强岩棉板的防水性能和提高岩棉板与找平层的粘结强度的作用；聚苯颗粒的低导热系数过渡层提高了系统的整体性和抗裂性。2种构造做法经试验和工程试点证明均可解决目前国内岩棉难以应用在外墙外保温系统中的技术问题，具有优异防火性能的岩棉外保温系统可应用于任何类型的建筑中，在高层建筑和防火要求高的建筑中其优势更为明显。

The study provided 2 kinds of finish systems which were pouring and anchoring rock-wool panel respectively. In general, galvanizing steel-meshwork using machine anchor can use all kinds of Rock-wool panel made in China. The interface mortar used in Rock-wool can prevent worker's hand from hurting and improve the water-proof capability and bonding intensity of rock-wool panel. The low-heat conductivity of polystyrene foaming granule paste improved the integer and anti-crack of system. The 2 kinds of rock-wool system all can resolve the current rock-wool panel applied difficulty in outer-wall external thermal insulation. The rock-wool external thermal insulation which has very nice fire-proof capability can apply any kinds of builds, especially high-rise buildings.

研究提出了现浇和锚固岩棉板2种涂料饰面构造做法，其中采用机械锚固热镀锌钢网施工可充分利用国产各类型岩棉板；岩棉板的界面砂浆处理可起到防止岩棉纤维扎手、增强岩棉板的防水性能和提高岩棉板与找平层的粘结强度的作用；聚苯颗粒的低导热系数过渡层提高了系统的整体性和抗裂性。2种构造做法经试验和工程试点证明均可解决目前国内岩棉难以应用在外墙外保温系统中的技术问题，具有优异防火性能的岩棉外保温系统可应用于任何类型的建筑中，在高层建筑和防火要求高的建筑中其优势更为明显。

The heat conductivity of the lead frame is more than 100 times of that of the mold resin.

引线框架的热导率大于注形树脂的热导率的100倍。

The heat conductivity of the wood is very poor.

木头的导热性很差。

Results show that heat conductivity and combustion time of microthruster unit are the main factors affecting growth of temperature and integration level.

结果表明，药室材料的导热系数和单元燃烧时间是影响温度成长和推冲单元分布的主要因素。

However, it is also substance with low heat conductivity, cold flow and great thermal expansion coefficient.

但也存在传热差，热膨胀系数大，有冷流等缺点。

Wood is a kind of typical combustible substance. So it is significant to research the measurement of the wood heat conductivity.

木材是一种典型可燃物，因此本文开展了木材导热特性的测试研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。