查询词典 pitch-black

In order to real-timely and accurately measure thread parameters such as thread angle(tooth-type half-angle),screw-pitch,lead,thread height,major diameter,minor diameter,pitch diameter,helix angle etc,and enhance the measuring accuracy,a non-contact thread parameter measuring system based on an array CCD was designed and achieved.

为实时准确地对螺纹的牙型角、螺距、导程、螺纹高度、大径、小径、中径、螺纹升角等参数进行测量，并提高测量精度，设计并实现了基于面阵CCD的螺纹参数非接触测量系统。

The wet grinding process suitable for coal tar pitch particles must be investigated to prepare the coal tar pitch water slurry as a new clean fuel.

为制备煤沥青水浆清洁燃料，必须研究适合于煤沥青颗粒的湿法磨矿工艺。

We can produce any different pitch blade according to customer needs, the classic value of the pitch: A, 10 degree, suitable brush motor FP helichoper, let lower speeds rotor greater lift; B, 8 degree, suitable brushless motor FP helichoper, can make the main rotor get a higher speed; C, 6.5 degrees, suitable some DIY FP helichoper, can make the helicopter have better lock tail performance with a small diameter and high-speed tail rotor.

桨距可以根据客户需要进行定制，经典的桨距值为：A、10度，适合有刷马达的FP电直，能够在较低的转速下取得更大的升力；B、8度，适合无刷马达的FP电直，能够使主桨获得更高的转速；C、6.5度，适合玩家DIY的FP电直，配合小直径高转速的尾桨，能够获得更好的锁尾表现。

Results show that when improving spot pitch in weld bonded joints with high elastic modulus adhesives, stresses in weld spot zone are decreased while stresses and strains at edges of overlap region are increased slightly. For the joints with low elastic modulus adhesives, both stress concentration degree at the weld spot and the shear strain at edges of overlap region are increased with the spot pitch increasing.

结果表明，高弹性模量胶粘剂胶焊接头中，增大焊点间距，焊点区应力减小而搭接区边缘胶层中的应力应变略有增大；低弹性模量胶粘剂胶焊接头中，焊点处应力集中程度和搭接区边缘胶层中的剪应变值都随焊点间距的增加而增大，增加焊点间距，两种接头的胶层断裂强度都将降低。

The results of the statistic analysis are as follows: 1 The intonation of interrogative sentence is expressed by the change of the pitch of the whole sentence rather than by the sentence final pitch alone; 2 The highest and lowest point of the tone nucleus and sentence final intonation in different interrogative sentences are higher than those of the declarative sentences; 3The difference between the questions in declarative word order and declarative sentence is larger than that between the other kinds of questions i.e.

统计分析的结果表明：(1)疑问语调不是仅仅由句末的音高来表现的，而是通过整句话的音高变化来实现的。(2)与陈述句相比，各种疑问句在语调上的共同特点是调核的调域和句末的调域都较高。(3)不带疑问结构的疑问句因为语调为其唯一的疑问标记，所以与陈述句的差异比带疑问词或疑问句法结构的疑问句与陈述句的差异更大。

Preheating system of the die set of swaying tray is heated by adopting Cr20Ni80 resistance wire, as diameter d is 1.5mm, node-pitch D is 36mm, screw-pitch h is 4mm, spiral column L' is 0.91m, 220V single-phase contacting is adopted.

摇盘模具预热系统采用Cr20Ni80 镍铬合金材料电阻丝加热，直径d 为1.5mm，节经D 选用36mm，螺距h 选用4mm，螺旋柱长度L'为0.91m，采用220V 单相接法。

Rational new method for checking ring gauge is put forward in this paper. For pitch less than 0.5 mm check plug is used to inspect size on virtual effective diameter and simple effective diameter, but for pitch over 0.5 mm, check plug is only used to inspect size on virtual effective diameter, simple effective diameter is measured by double ball.

提出了对于螺距不大于0.5 mm的螺纹环规，采用校对规检验作用中径及单一中径；而对于螺距大于0.5 mm的螺纹环规，则采用校对规检验作用中径，双球法测量单一中径。

Rational new method for checking ring gauge is put forward in this paper. For pitch less than 0.5 mm check plug is used to inspect size on virtual effective diameter and simple effective diameter, but for pitch over 0.5 mm, check plug is only used to inspect size on virtual effective diameter, simple effective diameter is measured by double ball.

提出了对于螺距不大于0.5 mm的螺纹环规，采用校对规检验效用中径及单一中径；而对于螺距大于0.5 mm的螺纹环规，则采用校对规检验效用中径，双球法测量单一中径。

The Jet Balloons will be used for the first time in Holland. They are special balloons, equipped with a valve. They should be inflated five minutes before the players enter the pitch, so that the entire stadium will be an ocean of red-white colours. The moment the referee leads players unto the pitch, the balloons should be released. They go straight up due to the valve and produce a great sound. If over 30, 000 spectators do so at the same time, the effect could be very special indeed!

这些气球的使用，在荷兰应该是第一次，它们都是一些特殊的气球，它们将在球员们进场前在体育场上空飘荡大约5分钟，所以，体育场在这段时间将会是一个红、白色的海洋，而等到这些球员都进场后，这些气球就会被释放，同一时间，它们将伴随着巨大的响声向上飘起，它们的数目可能超过3万多个，到时候景象会是非常壮观的！

When the pitcher throws to the batter, it is a strike if he swings and misses, if he hits the pitch into foul territory, or if he does not swing at a pitch in the strike zone.

当投手把球投向击球员后，如果击球员挥捧而未击中，把球打入界外地区或球在好球区之内而来挥棒击球，都算是一击。

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％。