有四种

Microraptor is a type of dromeosaur a genus of birdlike dinosaurs.

小盗龙是一种恐爪龙、一种类似鸟类的恐龙，以生有四个翅膀而著称。

All results showed that three kinds of medicament on controlling sweetpotato black rot is effective, the control effect of 70% thiophanate-methyl and 50% carbendazim were above 90%, 50% amobam was above 80%. The four kinds of medicament on controlling sweetpotato stem nematode with 40% isofenphos-methyl, 50% phoxim, 5% aldicarb and 5% ethoprophos in the field showed obvious effect, the control effect were 88.81%, 83.29%, 93.63% and 90.35%.

在贮藏期间对甘薯黑斑病的药剂防治试验中，70%甲基托布津、50%多菌灵和50%代森铵三种药剂对甘薯黑斑病均有较好的防治效果，70%甲基托布津和50%多菌灵的防治效果达90%以上，50%代森铵的防治效果达80%以上；在田间对甘薯茎线虫病的药剂防治试验中，40%甲基异柳磷、50%辛硫磷、5%神农丹和5%茎线灵四种药剂对甘薯茎线虫病的防治效果明显，防效分别为88.81%、83.29%、93.63%和90.35%。

The main varieties are: Phlox paniculata hardy varieties of fine distinctions and problems dozen Phlox four by Ju Netherlands-ju (clove red, crown, purple, blue dream) Germany Sedum yellow Germany Sedum, Germany Sedum leaves, red flowers Babao Sedum, Rhodiola Babao powder, blue tail Ye days Notoginseng Sedum, streets paved with gold Sedum, Sedum, by Carnation, the United States to spend evening primrose , Tradescantia hairless, Germany Iris, Iris, Butterfly Orchid, Iris tenuifolia, small beauty Iris Hong Iris root, Hosta The doll Hemerocallis, day lily flowers United States, yellow calamus, Lythrum salicaria, false lead ,Ju, Shegan, Jin-Han No.

主要品种有：宿根耐寒福禄考精优品种十几种及丛生福禄考四种，地被菊荷兰菊德国景天德国黄花景天、德国红叶景天、八宝红花景天、八宝粉红景天、鼠尾蓝叶景天、三七景天、遍地黄金景天、佛甲草、地被石竹、美国大花月见草、无毛紫露草、德国鸢尾、兰蝴蝶鸢尾、细叶鸢尾、小美人鸢尾、香根鸢尾、玉簪金娃娃萱草，美国大花萱草，黄昌蒲、千屈菜、假龙头、蛇鞭菊、射干、锦寒(1、2号)月季、马莲、黑心菊、松果菊、松塔景天、北景天、鼠尾草、马蔺、耧斗菜、荚果蕨、大花剪秋罗、卧茎景天、红宝石萱草、狼尾草、铃兰、落新妇等。

Miyashita's attention to detail bordered on breathtakingly obsessive:"The nut buttons take on 11 colors in four contrasting tones, each with their own unique concha design," said the press notes. Case rests.

设计时对于细节的关注近乎于强迫："11种颜色的纽扣带有四种对比的基调，每一个都有独特的半圆设计"。

The watercolor painting is the picture which widely popularizes, as the independent drawing form, It passed through the certain historical process, in the world the first watercolor painting stems from the German painter Dueler's hand, but becoming the independent picture and receiving the prosperous development is in England, until now already some 300 years history.

内容摘要：水彩画是个广为普及的画种，作为独立的绘画形式，其形成经过了一定的历史过程，世界上第一幅水彩画是出自于德国画家丢勒之手，但成为独立画种并兴盛发展是在英国，至今已有四百年的历史了。

In addition, one of the four genes is a cancer gene.

另外，这四种基因中有一种是癌基因。

Calcium sulfate has been used for bone regenation in oral medicine. Osteopontin, a marker molecule, expressed by osteoblast, plays multiple roles in human body. However, the effect of calcium sulfate on osteopontin expressed in osteoblasts is unclear. In this study, U-2 osteosarcoma osteoblastic cells were cultured in 0, 0.5, 1, or 10 μM calcium sulfate hemihydrate. There was no effect in the proliferation of cells, suggesting that calcium sulfate up to 10 μM is biocompatible. The cells and conditioned media were collected for analyzing mRNA and protein levels of osteopontin by reverse-transcription polymerase chain reaction and Western blot, respectively.

硫酸钙用於口腔医学中的骨头再生已经有多年历史，骨桥素是一种被骨母细胞分泌且在人体扮演重要多重角色的标的分子，然而，硫酸钙在骨母细胞分泌硫酸钙上的影响仍未明朗，在本实验之中，培养U-2骨肉瘤类骨母细胞(U-2 osteosarcoma osteoblastic cells)於0、0.5、1、10 μM的硫酸钙之中，在细胞数目的复制上，四种硫酸钙浓度并无影响，显示出U-2骨肉瘤类骨母细胞培养於10 μM的硫酸钙仍是生物相容性的。

The results indicated that none of these was a perfect classified scheme, so we proposed some modifications. The models of Newcomb and Bukowski (1983) and Coie and Dodge (1988) were the better choices.

结果显示这四种模式都有分类架构上的缺失，其中 Newcomb和Bukowsli (1983)与Coie 和 Dodge (1988)模式是较佳的分类方法；另外研究者也针对此二种模式提出若干修正，提供实际运用的参考。

In the chapter two we analysis the shortcoming of two existing designs of NFOD and present corn waveguide NFOD design, which base on the structure of active waveguide and nonactive waveguide.

第二章分析了国际上研究的两种近场记录光盘技术方案存在的问题，提出了以有源、无源波导结构为基础的波导锥尖近场记录技术方案及相关的四种可行的原理结构。

Continuous pictures per second the number of sheets 30, 15, 10, 5, 3, or a total of 6 kinds of automatic selection, but also every time the shutter of the pictures were taken to choose the number of sheets, a total of 30, 20, 10 or 5, four .

每秒连拍的照片张数有30， 15， 10， 5， 3或自动共6种选择，也可对每按一次快门的照片拍摄张数进行选择，共有30， 20， 10 或5四种。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐