管口的

A wind instrument ,such as a bassoon,clarinet,flute,oboe,or saxophone,in which sound is produced by the vibration of reeds in or by the passing of air across the mouthpiece.

木管乐器一种管乐器，如低音管、单簧管、笛子、双簧管或萨克斯管，这些乐器的声音靠簧的振动或通过吹口的空气流通而产生

Vessel connections for external cage displacer level switches shall normally be 50 mm (2") flanged with a centreline to centreline dimension of 356 mm (14").

外浮筒式液位开关的容器管口应通常是50 mm (2")的，中心线之间的距离为356 mm (14")的法兰。

In the construction of a long distance pipeline with high pipe material hardness, thin pipe wall and big caliber ellipticity,general pipe external aligning devices are difficult to comply with quality standard.

随着长输管道的发展，大口径管道日益增多，大口径管道的管口椭圆度相对较大，其材质硬度高，因此组对施工的难度加大。

Zuckerberg speaks in a steady, mellifluous tenor; he has a long neck and tends to point his chin upward, as if aiming the bell of a saxophone.

他说的时候用的是一种平稳、流畅的、让人回味无穷的语气，而且他的长脖子也仰着，下巴像是要指到天上去，好像是萨克斯风的管口一样翘着。

A critical review of experimental and theoretical results of standpipe and non-mechanical valves are given in detail. The measurement method on solids circulating flowrate as well as the flow property of gas-solid mixture through orifice are surveyed.

本文对迄今为止国内外对返料立管和非机械阀的研究现状和研究结果进行了详细的综述，归纳总结了实验与锅炉实际运行过程中固体颗粒循环量的测量方法以及气固混合物通过孔口的流动特性。

Woodwind: musical instruments made of wood or metal that you play by blowing and that usually have finger holes or keys such as a bassoon, clarinet, flute, oboe, or saxophone, in which sound is produced by the vibration of reeds in or by the passing of air across the mouthpiece.

木管乐器：一种管乐器，如低音管、单簧管、笛子、双簧管或萨克斯管，这些乐器的声音靠簧的振动或通过吹口的空气流通而产生 bagpipe

Certain veterinary cerate tubes with canulas are used as one-shot dispensers where the cerate is introduced into, for example, the udder or uterus of animals for treatment of mastitis or intra-uterine treatment.

某些兽用药膏软管的管口是一次性的，例如，治疗乳房炎和子宫内治疗，需要将药膏放置于动物的乳房和子宫内。

Since air currents in front of the balls form many small whirlpools, the pressure in front of them is less than that behind them.

因此在下管口上部空中的小球受四周的推力能浮在气流中心附近，而不向四周逃跑。

4H was the best time of bovine oocyte activationin the 6-DAMP, and the cleavage rates and blastula rates could reach 85.1% and 26.8%. 4. IVF-100 was used in vitro fertilization, because IVF-100 was not needed to prepare usually,store conveniently, and gain a higher cleavage rates. After the oocytes have matured for 20h, theywere digested by permease and treated with suctionpipe.

由于IVF-100无需经常配制、保存方便且可以获得较高的卵裂率，所以本实验采用IVF-100为受精液，卵母细胞成熟20小时后采用透酶+口吸管消化的方法处理，获得了较好的受精效果，卵裂率可达(76.8％)。

Nuristan, Afghanistan, October 2006: Blast halo and round exiting mortar tube as U.S. forces engage nearby insurgents.

努里斯坦省，阿富汗，2006年10月：当美军与附近的叛乱份子交战时，迫击炮管口升腾起圆形的冲击波光环。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐