查询词典 vacuum-packed

When it's dark, in a vacuum, if a person shines a beam of light straight across your eyes, you won't see it.

当黑暗时，在真空中，如果有人将一束光直射进你的眼睛，你就看不见它。

If you ask a physicist how long it would take for a marble to fall from the top of a ten-story building, she will answer the question by assuming that the marble falls in a vacuum.

如果你问物理学家一个弹球从十层高的建筑物的顶部掉到地上所用的时间是多长，她的回答将会是假定弹球是在真空中下落的结果。

Three fractions of the biodiesel(230—260℃,230—310℃ and 260—310℃) were collected by vacuum distillation at an absolute pressure of 2000 Pa.

通过减压蒸馏，在0.002 MPa的压力下，分别收集230~260℃、230~310℃和260~310℃3个馏分段的生物柴油，测定其密度、黏度、冷凝点。

The plasma density scale length decided by main laser pulse in the experiment is suitable for Vacuum Heating, and it is the domiant process for hot electron generation. From the scaling law about hot electron temperature given by VH model, the hot electron measured by experiment was reasonable, the temperature was higher than the temperature given by Rcsonant Absorption scaling law.

从真空吸收给出的超热电子温度的定标率来看，实验中测量得到的超热电子温度是合理的。X射线是各向同性的，X射线产额随入射激光强度的降低而减小，当强度小于10〓W/cm〓时，不再有硬X射线产生。

Ultrafine cobalt powder ; glycol; 1、2-propanediol; reduction ; preparation process ; abstersion ; desiccation in vacuum

超细钴粉；乙二醇； 1、2丙二醇；还原；制备工艺；洗涤；真空干燥

The preparation method comprises monomer synthesis and polymer synthesis. The polymer synthesis is that cyclopentadienyl sodium monomer is added into metallic cobalt complex-triphenyl phosphorus cobalt chloride under strict oxygen-free and water-free conditions, and then double inner alkyne or outer alkyne conjugate monomer is added in, and after reaction, the precipitation, filtering, abstersion and vacuum-drying are carried out, the large molecules polymer containing cyclopentadienyl cobaltocenium organometallic cobalt is obtained.

制备方法，包括单体合成和聚合物的合成，聚合物的合成是在严格无氧无水条件下，在金属钴配合物三-三苯基磷氯化钴，加入环戊二烯钠单体，随后加入双内炔或双外炔共轭单体，反应后沉淀，过滤，洗涤，真空干燥，得到含环戊二烯茂钴有机金属钴的大分子聚合物。

Motion through the fracture site (5) and accentuation of the intravertebral vacuum sign on extension is noted.

骨折部位有活动性(5)，椎体内真空现象在后伸位上更明显。

Company main products has: ZYB Multifunction Vacuum Oil Machine, BZJ Oil transformer oil machine (oil temperature automatic control, drop acid, desulfurization, decolorization), QZJ Oil multifunction machine (deacidification, bleaching, automatic control temperature), LPD light oil purification separation device, PWR type Decoloration renewable purification devices, BLY-type plate and frame filter, such as modulartanker.

公司主要产品有：ZYB多功能真空净油机、BZJ变压器油净油机（油温自动控制、降酸、脱硫、脱色）、QZJ多功能净油机（脱酸、脱色、油温自动控制）、LPD轻质油净化分离装置、PWR型脱色再生净化装置、BLY型板框滤芯组合式滤油加油机等。

High vacuum (down to 0.067 kPa abs 0.01 psia) for vacuum distillation column and evaporator.

全球首家权威认证 SIL2 安全型变送器； 264， 268 系列已获船级认证。

Saddle shaped AMF can produce a radial expanding force, which has more effective effect on resisting the pinch effect of self-generated azimuthal magnetic field of arc current. This effect of saddle shaped AMF can keep vacuum arc in diffuse mode under much higher current. So the limiting current interruption capacity of vacuum interrupter can be enhanced.

为了进一步提高纵向磁场对真空电弧的控制作用，本文提出在真空灭弧室的触头间引入从触头中心向边缘逐渐增强的非均匀纵向磁场，马鞍形纵向磁场会对真空电弧产生一个径向扩张力，而纵向磁场分布的合理设计可以使这一扩张力进一步抑制真空电弧自生环向磁场对电弧的箍缩作用，从而使真空电弧在更大的电流时仍能保持在扩散态，使真空灭弧室的极限电流开断能力得以提高。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。