远轴的

Close-up performance of the Summicron-M is on the same level as the performance at infinity setting actually infinity is that distance where the incoming light rays are parallel to the optical axis.

近摄表现与无穷远时相当(事实上，无穷远处的光线是平行光轴入射的。对多数镜头而言，大约100倍焦距的物距时，入射光满足这一条件)。

TREBUCHET—This more sophisticated catapult used a combination of a pivoting counterweight and a sling to launch projectiles even farther and quite accurately.

投石-这更先进的弹射器，用相结合的一个枢轴抗衡和吊索发射的弹丸，甚至更远，相当准确。

150HP-300HP screw air compressor rotor is the German GHH-RAND joint shaft type unit,adopts the third generation asymmetrical dentate 5:6 rotors,The major axis is more reasonable than the choice, the tangent speed of rotors is only 30-36m/s, is far lower than that———60m/s of common air compressors, it keeps 0.003INCH between rotors that will not abrase forever, the space between teeth dropping variance is small, so the backflow loses is slight, Enhances10-12% kf the efficiency compared to the 4:6 dentate, save power 20%, adopts the Swden SKF bearing.

150HP-300HP）螺杆机转子为德国GHH-RAND联轴式机组，采用第三代非对称齿型为5：6的转子，长径比选择合理，其转子的切线速度仅为30'36m/s，远低于一般空压机60m/s 的切线速度，转子之间保持0.003INCH间隙永不磨损，齿间落差小，故回流损失小，比4：6齿型提高效率10-12%，省电20%，采用瑞典SKF轴承，极大延长了主机的寿命。

Br/br/Adopts the GHH-RAND remarkable mainfrane br/(150HP-300HP) screw air compressor rotor is the German GHH-RAND joint shaft type unit,adopts the third generation asymmetrical dentate 5:6 rotors,The major axis is more reasonable than the choice, the tangent speed of rotors is only 30-36m/s, is far lower than that60m/s of common air compressors, it keeps 0.003INCH between rotors that will not abrase forever, the space between teeth dropping variance is small, so the backflow loses is slight, Enhances10-12 kf the efficiency compared to the 4:6 dentate, save power 20, adopts the Swden SKF bearing.

采用GHH-RAND卓越主机br/（150HP-300HP）螺杆机转子为德国GHH-RAND联轴式机组，采用第三代非对称齿型为5：6的转子，长径比选择合理，其转子的切线速度仅为3036m/s，远低于一般空压机60m/s 的切线速度，转子之间保持0.003INCH间隙永不磨损，齿间落差小，故回流损失小，比4：6齿型提高效率10-12，省电20，采用瑞典SKF轴承，极大延长了主机的寿命。

The remote control and data acquisition system of GST-1 three-axis turntable is designed and manufactured. It can not only control all the work states of the turntable, but acquisite 6 channels digital signals and 6 channels analog signals as well. The system is powerful and has high accuracy of data acquisition. It is the important guarantee to realize automatical test of intertial sensor and system.

设计和参与研制了GST-1型三轴转台计算机远控及数据采集系统，并进行了实际调试，该系统不仅可以程序控制转台的所有工作状态，而且能够同时采集被测对象的六路数字信号和六路模拟信号，功能强大，数据采集精度高，是实现惯性仪表和惯性系统自动化测试的重要保障。

When high power laser transmits in the atmosphere, thermal blooming will be generated. In order to study the phenomenon, the effect parameters to steady-state thermal blooming without wind are solved in detail by numerical simulation. It is studied that both epaxial light intensity and energy distribution at far field are affected by steady-state thermal blooming without wind.

为了研究强激光在大气传输过程中产生的热晕效应，采用数值模拟的方法，对无风时稳态热晕效应的影响参数进行了求解，探讨了无风稳态热晕效应对轴上光强以及远场能量分布的影响。

Methods Sixty students(120 eyes)with myopia(within-2.50D)were selected.visival acuity,cycloplegic refraction,keratometer,ocular axis,stereoscopic vision,and phoria strabismus were observed before and after 1～1.5 years wearing Anti-myopia Glasses.

方法60例(120眼)近视度在-2.50D以内的中小学生，观察其戴镜1～1.5年后的裸眼远视力、屈光检查结果、角膜曲率、眼轴长度、立体视觉及隐斜度的变化。

PhyA is the photoreceptor of far-red light perception in Arabidopsis and mediates the inhibition of the hypocotyl elongation under FR light. phyA has two domains : the N-terminal photosensory domain with a chromophore-binding site and the C-terminal domain which contains signaling motifs such as a kinase domain.

phyA为阿拉伯芥中远红光的接受体，在远红光中可抑制下胚轴延长，phyA的N端带有一个可感受光讯息的色基，C端含有可传递讯息给下游基因的kinase区域。

Spikelets dorsally compressed, florets 1 or 2, disarticulating above glumes and between florets, rachilla extension with apical rudimentary floret present; lower glume minute or suppressed; upper glume leathery, appressed to rachis, exceeding and covering the sunken florets, closely 5–12-veined, apex acute to caudately awned; lemma much shorter than upper glume, rounded on back, cartilaginous to hyaline, 3-veined, apex obtuse to acute; palea membranous, usually equal to lemma.

背小穗压扁，小花1或2，脱节高于颖片和在小花，小穗轴扩展具顶端不发育之间宿存；压抑的更低的颖片小或；上面颖片革质，贴伏于轴，超过和包括沉没的小花，接近5-12脉，对具芒caudately先端锐尖；外稃远短于上面颖片，在后面，对透明，3脉，先端钝的到锐尖软骨上绕行；内稃膜，通常等于外稃。

Even the scalloped rings of Nikon's first SLR lenses were far better, as were the wider rings on Nikon's 1940's rangefinder lenses.

即使是尼康的第一单镜反光相机镜头扇形环远越好，因为人的尼康1940年的旁轴镜头更广泛的戒指。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。