凹口

Any of several butterflies of the genus Polygonia, having wings with brownish coloring and irregularly notched edges.

银纹多角蛱蝶一种银纹多角蛱蝶属蝴蝶，有棕色、带不规则v字形凹口边缘的翼

Different learning-rule lead to different evolvements from which some significant results are achieved such as the concaving point phenomenon. Due to the individual's quality of self-determination and decision-making, though it is influenced by initial condition, the system's evolvement is ruled by its inner principles, free from the outer power.

由于学习过程的不同导致了演化结果的不同并得到了一些有意义的结果，如：凹口现象，在一些学习规则中，由于个体的自主性决策性和智能性，虽然系统的演化过程受到环境的影响，但结果却并不受给定初始条件的影响，这说明外界条件的影响对演化结果不会产生预期影响。

The filtrating core is made by stainless steel notch metal by enwinding, with high intensity and resistance for corrosion; therefore, it can be used permanently unless it is damaged physically.

滤芯采用不锈钢凹口金属线缠绕而成，其强度高且具有优良的耐腐蚀性。

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。

The result of the theory analysis and test study determines the important parameters and action law of the detonating fuse , metal flat tube ,notch bolt and separation plate in the separation device of the expansion tube.

2通过理论分析和试验研究，确定了膨胀管分离装置中导爆索、金属扁平管、凹口螺栓、分离板的重要参数和作用规律。

Screw heads have to be polished, with their slots and rims chamfered.

所有螺丝帽的边缘及凹口都要削角抛光，螺丝尾则须做平面或球面抛光。

And the key parameters of the notch bolt type and the separation plate type expansion tube are depend on the system study....

2通过理论分析和试验研究，确定了膨胀管分离装置中导爆索、金属扁平管、凹口螺栓、分离板的重要参数和作用规律。

The key parameters and action law of the separation device of the expansion tube are initially determined by the project test. And the key parameters of the notch bolt type and the separation plate type expansion tube are depend on the system study.

通过方案选择试验初步确定了膨胀管分离装置的重要参数和作用规律，通过系统的研究确定了凹口螺栓式和分离板式膨胀管分离装置的关键参数。

Hardness of a metal is its resistance to surface indentation or penetration under standard test conditions.

一种金属的硬度是它的抵抗表面凹口或者在标准测试条件下的洞察力的能力。

Rear gunsight having an open notch instead of a peephole or telescope.

在瞄准器的后部有一个开着的凹口取代了原来的窥视孔或望远镜。

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。