吸管

The principle of determination of sound absorption coefficient of materials by transfer function method is introduced.

介绍了在阻抗管中采用传递函数法测量材料吸声系数的原理，详细介绍了使用双传声器进行测量的方法，指出了测试的频率范围取决于阻抗管的管径大小和传声器布置的位置。

The finite element method is applied to analyze the attenuation performance, which is basing on that porous clapboard, porous pipes and absorbent are accurately modeled and the influence of temperature, velocity and tail reflection is taken into account.

采用有限元方法，在对穿孔隔板、穿孔管和吸声材料进行精确建模，并考虑温度、流速和尾管反射对消声的影响的基础上，对消声特性进行分析。

Pipette 30 μl of saline solution into the lid of the microcentrifuge tube.

用吸液管取30微升的盐溶液到微型离心管的盖子上面

Drape the tubing over your ears. Slide the loop adjustment collar up under the chin to hold the

将支管顺着耳轮绕到脖子底下，再将调节圈调到合适的位置，系紧吸氧管。

Items such as arterial filters, anesthesia filters, blood filters, IV catheters, dialysis tubes, pipettes, cardiometry reservoirs, blood/gas filters, face masks and IV spike/filters can all be made using ultrasonic welding.

项目例如动脉过滤器、麻醉过滤器、血液过滤器、IV导尿管、透析管、吸移管、人造心脏、血液或气体过滤器、面罩和IV钉或者过滤器可能所有使用超音波熔接被使用。

Axygen's product portfolio of high-quality plastic consumables including pipettes, pipette tips, and high-throughput screening (HTS products and lab equipment (including centrifuges, pipette controllers, and incubators) expands upon and complements the general labware, cell culture, and HTS/Assay products offered today by Corning.

爱思进的高品质塑料耗材产品组合（包括吸液管、吸嘴、高通量筛选产品等）和实验室设备（包括离心机、移液器和培养皿等）扩展并补充了康宁目前提供的一般实验室仪器、细胞培养和高通量筛选/化验产品。

Has attracts the thick liquid and the flotation process dual function, uses the caster type double leaf blade the novel impeller, and increases the design along with the trough body volume to have the honeycomb duct and to install false, the organization is reasonable, the revolution is reliable, the high performance attracts the thick liquid ability in other flotation machine.

具有吸浆和浮选双重作用，采用后倾式双叶片的新颖叶轮，并随槽体容积的增加设计有导流管和假地装置，机构合理，运转可靠，性能优越于其它吸浆能力的浮选机。

Has attracts the thick liquidthe flotation process dual function, uses the caster type double leaf blade the novel impeller,increases the design along with the trough body volume to have the honeycomb ductto install false, the organization is reasonable, the revolution is reliable, the high performance attracts the thick liquid ability in other flotation machine.

具有吸浆和浮选双重作用，采用后倾式双叶片的新颖叶轮，并随槽体容积的增加设计有导流管和假地装置，机构合理，运转可靠，性能优越于其它吸浆能力的浮选机。

Self-priming height should not exceed the stated number of 4.5～5.5m,and the suction pipe should not be over 10 meters long

自吸高度不能超过规定值4.5～5.5米，吸人管长度不超过10米

The invention of the rotating suction mouth has play a breakthrough role in the promotion of turnout of coal suction machine.

在吸送式气力输送装置中，安装在输送管吸入端的吸嘴插入散装物料堆中取料。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷