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saw plate
相关语句
  锯片
     Experiment upon the stress distribution of circular saw plate
     圆盘锯锯片应力分布实验研究
短句来源
     The vibration of the circular saw plate is a main sound source in the metal sawing noise.
     圆锯片的振动是金属锯切噪声的主要声源之一。
短句来源
     A Study of Electrocontact Hardening of the Tooth Part of a Cold Cutting Circular Saw Plate Made up
     65Mn冷切锯片齿部电接触淬火的研究
短句来源
     The results shown that, to replace the quench-tempering treatment with isothermal treatment for 65Mn steel circular saw plates will obviously improve the inherent quality of the saw plate and save on sources of energy.
     65Mn钢圆锯片用等温处理取代现行的淬火回火处理,将会在提高锯片的内在质量和节能方面取得明显效益。
短句来源
     Based on the principle of dry friction damping dissipation, the metal laminated circular saw plate can improve effectively the dynamic behavior of the saw plate. Sstisfactory results of reducing the metal sawing noise has been achieved, the effect being about 12 dB(A).
     基于干摩擦阻尼耗能机理的分层圆锯片能有效地改善锯片的动态特性,可使金属锯切噪声级降低12dB(A)左右。
短句来源
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  “saw plate”译为未确定词的双语例句
     THE DESIGN OF CUTTING BLADE THICKNESS OF CEMENT CONCRETE SAW PLATE
     关于水泥混凝土路锯缝机锯刀盘切削刃厚度之设计
短句来源
     THE MODAL SHAPES AND THE NOISE REDUCTION EFFECT OF THE METAL LAMINATED SAW PLATE IN CLAMPING
     法兰夹紧作用下金属分层锯片的振型及降噪效果
短句来源
     The Structural Research on Layered Segment of Diamond Saw Plate
     分层式金刚石锯片刀头结构的研究
短句来源
     It suggests theoretically a design formula of reasonable thickness of the cutting blade of cement concrete saw plate on the basis of the systematic analyses and studies.
     按照本文推荐的公式及有关已知参数,筑路机械设计制造者及筑路施工技术人员很易确定适用于当地筑路区域的锯刀盘切削刃合理厚度。
短句来源
  相似匹配句对
     Experiment upon the stress distribution of circular saw plate
     圆盘锯锯片应力分布实验研究
短句来源
     The Structural Research on Layered Segment of Diamond Saw Plate
     分层式金刚石锯片刀头结构的研究
短句来源
     syntherismae Saw.
     syntherismae Saw.
短句来源
     plate structure ?
     第二部分:绘画中“板块结构”原理的探究
短句来源
     SAW Motors (I)
     表面波型电机(一)
短句来源
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  saw plate
Thin helium films have been deposited on a LiNbO3 SAW plate composed of three identical collinear transducers.
      
The vibration modes associated with the repeated natural frequencies, typical of the axisymmetric saw plate, are called the repeated modes.
      
The saw plate is first precision cut as a flat steel disc from high quality hardened chrome alloy steel of a consistent thickness.
      


Before this note, three complete or partly complete specimens of fossil birds have been unearthed from the diatomacous bed of Linqu, Shandong, and were described respectively in two papers by the present author in 1977 and 1980. Recently, a fourth fossil bird was obtained again from the same locality and horizon by the members of Linqu County Museum, and was sent to the present author for study. It is an excellent specimen, and a third note of the group of this animal of Linqu County is therefore here proposed.Order...

Before this note, three complete or partly complete specimens of fossil birds have been unearthed from the diatomacous bed of Linqu, Shandong, and were described respectively in two papers by the present author in 1977 and 1980. Recently, a fourth fossil bird was obtained again from the same locality and horizon by the members of Linqu County Museum, and was sent to the present author for study. It is an excellent specimen, and a third note of the group of this animal of Linqu County is therefore here proposed.Order Gruiformes Family Rallidae Genus Youngornis, gen. nov.Generic diagnosis——as for the species.Youngornis gracilis, sp. nov. (Pl. Ⅰ)Type A complete skeleton, but part of bones represent only by the concave prints in situ, skull roof missing, neck long, but indistinct, structures of trunk and girdles not so clear, anterior and posterior limbs well preserved.This specimen belongs to the Linqu County Museum, it will be sent back when the determination is made.Locality and Horizon Linqu County, Shandong Province; Middle Miocene (Shanwan Series).Diagnosis Size comparatively small, neck somewhat long. Bill short and stout, with its length shorter than that of tarsometatarsus. Humerus longer than ulna or radius. Bones of hind leg slender and long, but length of tarso-metatarsus still shorter than that of tibia. Four toes, three forward and one rearward, hind toe only slightly higher than others, and stands on same plane fundamentlly with front ones. Toes and claws thin and long, length of middle one (and its claw) longer than that of tarsometatarsus.Remarks At the first glance, the fossil bird here described has seemingly only three front toes, does it really have no hind toe? This is one of the important characters of birds in taxology. With the help of the magnifying glass, we found that there are two connected segments of concave prints situated slightly behind and higher to the inner toe of the right foot (see the enlarged part of the Plate I~*). The first segment is a phalanx, and the second is a claw, they are as long and slender as those seen in other toes forward. Furthermore, at the inner side of the lower part of tarsometatarsus, there projects slightly a small bone from which the concave prints mentioned above extend. The bone is here considered by the present author first metatarsus, and the concave prints hind toe. In the left foot, the same condition can be observed though the prints are not so clear as in the right one.The fossil bird takes a maximum height in preservation only in 202 mm. from its bill to the end of toe, it is a small bird. In view of its structures as a whole, especially the long and slender leg, we can consider it a member of grallatores (wading birds).Among the grallatores, the fossil bird differs clearly from many members by its bill. It also differs from some members of Charadriidae which do not bear a long bill by its developed hind toe. In view of the characters of the small size, the short and stout bill, the long and slender legs and toes, and the length of tarso-metatarsus longer than that of bill, but shorter than that of middle toe and its claw, the present specimen is comparable with some members of Rallidae of Gruiformes, especially those with a small size (such as Porzana).The fossil record of Rallidae is more numerous abroad, it is little known in our country except some fragments such as those from Quaternary of Choukoutien. The fossil bird here described hence represents the earliest and most complete one of Rallidae and even Gruiformes so far known in China, a new genus and species, Youngornis gracilis, of Family Rallidae is thus proposed. The generic name is in honour of my tuitor, late Prof. C. C. Young, who examined the diatomacous bed early in 1935, and named it for the first time "Shanwan Series", where the fossil birds and many other fossils were obtained.It is interesting to note that in the present specimen, on the surface of a place where the gizzard is situated under norma1 condition, some sands are gathered (see Plate I). The present author is hesitatingly to decide whether they are original "gastric sand" of the bird. If so, it would be truly a rare record in fossil bird, and the trunk of the specimen is really upward in preservation.A list of fossil birds so far known from Linqu, Shandong may be now grouped as follows:Galliformes Phasianidae Shandongornis shanwanensis Yeh, 1977 Linquornis gigantis Yeh, 1980 Anseriformes Anatidae Sinanas diatomas Yeh, 1980 Gruiformes Rallidae Youngornis gracilis, gen. et sp. nov.

在山东临朐解家河硅藻土矿中,此前曾先后出产过三件完整或部分完整的鸟化石,已分别经笔者研究,两次撰文发表(1977,1980)。1979年,临朐县文化馆又从该矿发现第四件完整的鸟化石,再次送与笔者研究,本文即此化石的研究报告。经鉴定、对比,认为该鸟化石应归鹤形目、秧鸡科,为一新属种,名为秀丽杨氏鸟。它是我国秧鸡科甚至鹤形目迄今已知保存最为完整、时代最早的化石代表。

According to the composition of spermatoblasts and the features of chromatin,we di-vided the seminiferous epithelium of rat into 5 stages instead of 14 stages after ClermontAccording to the stages of the germinal lineage cells,we used H & E stain and studied thequantitative changes of the seminiferous epithelium of rat testis after heating it in warmwater(43℃).for 20 min.By this method we studied the variation in the number of eachkind of spermatoblast;at the same time we also made some qualitative observations,andsuggested...

According to the composition of spermatoblasts and the features of chromatin,we di-vided the seminiferous epithelium of rat into 5 stages instead of 14 stages after ClermontAccording to the stages of the germinal lineage cells,we used H & E stain and studied thequantitative changes of the seminiferous epithelium of rat testis after heating it in warmwater(43℃).for 20 min.By this method we studied the variation in the number of eachkind of spermatoblast;at the same time we also made some qualitative observations,andsuggested a sensitive order of spermatoblasts to heating in stage Ⅲ(corresponding to Cler-mont stage Ⅶ-Ⅷ,see plate Ⅰ):the primary spermatocytes,spermatids,preleptoteneprimary spermatocytes.The type A spermatogonia and Sertoli cells were very little affect-ed,the damage of Sertoli cells being reversible.The mature spermatozoa were not af-fected.The quantity of the Leydig cells located between the interstitial triangles and theaverage diameter of the nuclei of the Leydig cells were not changed after heating.Thisindicates that the endocrine function of the testis is not influenced.

本文报道了用43℃温水加热大白鼠睾丸20分钟后其生精上皮细胞的数量变化。实验结果表明,各类生精细胞对热作用的敏感程序依次为粗线期初级精母细胞、精子细胞、细线前期初级精母细胞;A 型精原细胞及支持细胞所受影响较小;成熟精子及间质细胞不受热作用的影响。损伤在热作用50天后开始恢复。本文还提出了H-E 染色大白鼠生精上皮周期的5期分类法。

The morphological changes which occurin human erythrocytes budded by 390x10~(-3)mol/L EDTA-l mol/L CaCl_2-150x10~(-3)mol/LNaCl have been studied with scanning elec-tron microscopy and differential inter-disturb-ing microscopy.These changes are as follows(see Plate I,Fig.1): 1)The appearance of small "bud-like pro-trusions" (2) on some intact erythrocytes(1). 2)More and more "bud-like protrusions"onthese cells were increased during the nor-mal discoid erythrocytes become sphero-cytes(3,4). 3)A lot of crenated...

The morphological changes which occurin human erythrocytes budded by 390x10~(-3)mol/L EDTA-l mol/L CaCl_2-150x10~(-3)mol/LNaCl have been studied with scanning elec-tron microscopy and differential inter-disturb-ing microscopy.These changes are as follows(see Plate I,Fig.1): 1)The appearance of small "bud-like pro-trusions" (2) on some intact erythrocytes(1). 2)More and more "bud-like protrusions"onthese cells were increased during the nor-mal discoid erythrocytes become sphero-cytes(3,4). 3)A lot of crenated cells,called"blastoery-throcytes",were produced(5),but theyhave never been echinocytes described bythe majority of literature. 4)This blastoerythrocyte progresses to apoint where it begin to form "bud",con-tinue to eniarge(6),pinched off from thecell body (mother cell),and were finallyfree as large visicles (50—1000 nm indiameters) (7) in the suspension. 5)The mother cells(8) recovered their dis-coid shape which is the same as thatobserved for unreacted erythrocytes,butthe volume of mother cells were decreas-ed to about 80—90% that of the unreact-ed erythrocytes(9). The entire budding and vesiclation pro-cess occurs without any appreciable hemolysis. Usually only one bud was formed per cell,two buds were more infrequent,and three budsper cell were rather rare.It was surprisedthat there is a structure like "the base of fruit"as a relic of the membrane on the newbornvesicles observed in scanning electron micro-graphs (Plate I,Fig.3 and 4). The vesicles can be separated from themother cells,unreacted erythrocytes,and anyerythrocyte ghosts by 60/40/30% sucrosegradient centrifugation.The protein composi-tion of the isolated vesicles was examined bySDS-gel electrophoresis (Plate II,Fig.1).Analysis indicated that the membrane proteindetected in these vesicles were mainly band 3,band 4.5 region and glycophorin.The distin-guishing characteristic of these vesicles is,how-ever,the marked absence of proteins asso-ciated with the membrane skeletal network,specifically spectrin (band 1 and 2) and actin(band 5). We have found that the blastoerythro-cytes fused with unreacted erythrocytes in thebudding course (Plate II,Fig.2—4).We havealso found that the erythrocytes maintainedin the ACD solution at room temperature(20—25℃) for 30—72 hr can be also bud-ded off and be released as vesicles (Plate II,Fig.6).This finding suggests that the vesi-cles formation is a wide-spread event in na-tural system.

用Ca~2+-EDTA滴定法、加热法和室温静置法都能使人红细胞发芽并释放出囊泡,但发芽进程各不相同,囊泡大小也有差异。用微分干涉差显微镜和扫描电镜观察发现,发芽有时经芽胚红细胞这一中间阶段,但它决不是大多??数有关文献所提的棘细胞。又发现刚释放出来的囊泡具有“果蒂”样母体膜残留物。还发现发芽过程中常伴有细胞融合现象。据此认为芽胚红细胞极不稳定,它或者通过释放囊泡,或者通过细胞融合来达到稳定态。分析再次证明,发芽释放的囊泡缺失骨骼网络的主要成分,即收缩蛋白和肌动蛋白。

 
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