查询词典 crack

The growth conditions were investigated,the transparent and crack free crystal of 35mm×20mm×10mm with well developed {001} pinacoid was obtained using a ［210］ seed.

研究了生长工艺，用［210］方向的籽晶，获得了尺寸为35mm×20mm×10mm的单晶，该晶体无色透明，不开裂，呈现发育完好的｛001｝板面。

The crack of palm against cheek rang like a pistol shot on the morning air.

这一记响亮的耳光有如晨空爆出震耳的枪声，立刻引起了人群骚动。

Artificial rock wall is the artificial rock wall and set up the point and the line, the variety of line, such as the boss, pit, crack, angle of elevation, so that you can understand the feeling "Mountain to the absolutely peak at me".

人工岩壁是人为设置岩点和路线的模拟墙壁，路线变化丰富，如凸台、凹窝、裂缝、仰角等，让你体会"山到绝处我为峰"的感受。

He went out by the open porch and down the gravel path under the trees, hearing the cries of voices and crack of sticks from the playfield

踱出敞开着的门廊，他沿着砂砾铺成的林荫小径走去，听着操场上的喊叫声和球棍的击打声。

But sometimes Squaw Walden had her revenge, and a hired man, walking behind his team, slipped through a crack in the ground down toward Tartarus, and he who was so brave before suddenly became but the ninth part of a man, almost gave up his animal heat, and was glad to take refuge in my house, and acknowledged that there was some virtue in a stove; or sometimes the frozen soil took a piece of steel out of a plowshare, or a plow got set in the furrow and had to be cut out.

有时候，瓦尔登这印第安女子复仇了，一个雇工，走在队伍后面的，不留神滑入了地上一条通到冥府去的裂缝中，于是刚才还勇敢无比的人物只剩了九分之一的生命，他的动物的体温几乎全部消失了，能够躲入我的木屋中，算是他的运气，他不能不承认火炉之中确有美德；有时候，那冰冻的土地把犁头的一只钢齿折断了；有时，犁陷在犁沟中了，不得不把冰挖破才能取出来。

Based on the principle of PEC, surface cracks mainly affect the high frequency components and subsurface crack mainly affect the low frequency components, so the PEC signals can be analyzed in frequency domain, which can eliminate the influence of noises during measurement. A method of frequency spectrum separating point is proposed for flaw classification, which enhances the accuracy in classification of defects. The agreement between theory and experiment shows that the present method is valid and applicable.

通过对脉冲涡流的理论分析发现，表面裂纹主要影响脉冲频谱中的高频成分，而表面下裂纹主要影响脉冲频谱中的低频成分，因此可以将时域中易受噪声影响的脉冲涡流信号变换到频域分析，提出了"频谱分离点"的方法来对裂纹进行分类识别，提高了缺陷分类识别的正确率，理论分析和实验结果相一致，证明了该方法的正确性和有效性。

Firstly, the basic character of the remote filed eddy current is simulated and analyzed in case of two-dimension axial symmetry which approves the existence of remote filed eddy current phenomenon; the full circumferential defect model is investigated to approve the feasibility of using the RFEC techniques to detect the position and depth of defect; the pit corrosion、circumferential and axial crack models are simulated, and the defect character based on voltage plane polar plot and the changes of phase and amplitude are analyzed to supply the standard for defect reconfiguration.

首先，在二维轴对称情况下仿真与分析了远场涡流的基本特性，证实了远场涡流现象的存在；对全周向缺陷的远场涡流检测进行了详细研究，证实了远场涡流检测缺陷位置和深度的可行性；对点状腐蚀、轴向与周向裂纹三种非轴对称缺陷进行三维有限元仿真，利用相位差和幅值变化曲线与电压平面极坐标图对缺陷特征进行分析，为缺陷形状重构提供了依据。

The surface crack of the pontoon shell plate is simulated by using the ABAQUS program.

对于半潜式钻井平台浮箱，裂纹的扩展不仅影响结构的水密性甚至可能对结构的安全产生巨大威胁，并直接决定平台的整体使用寿命。

Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom.

请他保有这样的信念：玩具枪的声音就是玩具枪的声音，尽管这世界的古人和今贤们坚持说那是世界末日开始的声响。

Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom

学者应该坚持自己的信仰：气枪的一响不过是啪的一声而已，尽管那些年高者与位高者断定它是世界末日的霹雳。

For you say, My doctrine is pure, And I am clean in Your eyes.

11：4 你说，我的道理纯净，我在你眼前清洁。

The method takes make water sedimentary in patient of be in hospital of leucocyte grow in quantity 30, according to clean middle make water bacterioscopy result, distinguish the patient to affect group and blame infection group, pathology of puncture of farther travel kidney analyses blame infection form.

方法取尿沉渣中白细胞增多住院患者30例，根据清洁中段尿细菌检查结果，将患者区分为感染组和非感染组，非感染组进一步行肾穿刺病理分析。