凹槽

Cross recessed hexagon bolt with indentation, single coil lock washer and plain washer assemblies

十字槽凹穴六角头螺栓，弹簧垫圈和平垫圈组合件

Seed face plane or slightly concave, never sulcate.

种子表面平或稍凹，从未具槽。

The results indicate that hydrocarbon originated from the deep depression zone and Che-luo saddle and injected westward and southwestward in Weizhuang area.

由此明确了本区油气自东、东北方向向西、西南方向注入，深凹带和车逻槽提供了主要油源。

Seed face concave or with a broad, shallow sulcus.

种子表面凹或具一宽的，浅的槽。

The indicator element (2) is designed as a waveguide panel, wherein light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system (2u), such as a grating structure or the like, which is configured as an indicator pattern, for producing an indicator pattern (2a) activable in the indicator element (2) by the action of light, such that divergent recesses and/or grooves of various sizes and/or shapes constitute divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, the filling factor, shape, profile and/or size thereof being optimized in such a way that the diffraction efficiency is a function of place.

把指示元件(2)设计成波导板，其中光束以全反射方式传播并且从那里通过构造成指示图案的衍射外耦合系统(2u)、如光栅结构等得到外耦合，用于在指示元件(2)中产生可由光作用激活的指示图案(2a)，使得各种尺寸和/或形状的分散的凹口和/或槽纹构成各种尺寸和/或形状的发散的局部光栅、诸如多形状的和/或二元像素和/或单像素的，所述局部光栅的填充系数、形状、轮廓和/或尺寸可以以这样的方式优化，使得衍射效率是位置的函数。

Seed face deeply concave or sulcate.

深深的种子表面凹或者具槽。

Concave curves in conveyors have the tendency to lift the conveyor belts out of the curves and the troughing idlers, resulting in Big Problems.

这样形成的凹曲线在运行中有使皮带脱离槽形托辊和机架形成的轨迹，结果造成大问题。

And for the uneven surface which is concaved into the surface, the defected concrete should be removed by chisels to form the pits and grooves that are deep enough for backfilling and repairing .

凹入表面以下的不平整表面用凿子除掉缺陷的混凝土，形成供填充和修补用的足够深的坑、槽。

The nonlinear is incarnated when the ball is rolling respectively on three concaves. The track driven by motor is in simple harmonic vibration, and the frequency and amplitude of simple harmonic vibration of the track can be considered as adjusting parameters.

以滚球在3个凹形槽上的受力体现作用的非线性，导轨由电机推动作简谐振动，滚球在导轨上作受迫振动，可以把导轨作简谐振动的频率或振幅作为调整参量。

The string may have a center serving to accommodate the drawing fingers, a nocking point to which may be added serving to fit the arrow nock as necessary, and to locate this point, one or two nock locators may be positioned, and at each end of the bowstring a loop to be placed in the string nocks of the bow when braced.

放器接触此处，上面加上与箭尾端相配的凹口点，箭尾扣在这些点上，可放置一个或两个弦上箭巢。在弦的每一端结一个环，套在弓翼两端的槽上。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失