In this paper, the taxonomical problems of tulipa l. from china were studied based on the results of both the field observation and the examination of herbarium specimens, and the analysis of leaf epidermis morphology, pollen morphology, seed coats micromorphology and comparative embryology. the main results are as follows : ( 1 ) tulipa l. from china is taxonomically revised. there are 16 species distrubuted in china and tulipa kuocangshanica d. y. tan, x. r. li et d. y. hong is described as new
本文通過野外調查及憑證標本的考證，並結
合葉表皮形態、花粉、種皮的微形態及比較胚胎學等方面的觀察，對國產鬱金香屬植物分類中存在的問題進行了研究，主要內容如下： （ 1 ）對國產鬱金香屬植物進行了了修訂，確認了國產鬱金香屬植物共有16種，其中新種1個: tulipakuocangshanicad . y . tanx . r . lietd . y . hong 。
A new species of scapania scapaniaceae, hepaticae from sichuan, china
中國四川
合葉苔屬一新種
Comparing tow methods of efficency pre - estimation, it finds out the new method fit for super - low specific - speed pump. acoording to the study and comparison on efficency and reliability, the thesis points out merits and faults of the 5 types of impeller, and draws a conclusion that the complex impeller and partly blocked - flow - passage impeller are fit for the impellers of super - low specific - speed centrifugal pump
比較了泵效率預估的方法，提出了適
合於極低比轉數泵效率預估的新方法，並對其性能要求的效率和可靠性兩方面進行了研究比較，指出了五種形式
葉輪各自的優缺點，得到結論：復
合葉輪和部分堵塞流道的一般
葉輪適
合作極低比轉數泵
葉輪。
The increasing - flow design method is presented on superlow - specific - speed high - speed centrifugal pump in this paper
闡述了超低比轉數高速復
合葉輪離心泵的加大流量設計方法，並給出了兩個設計實例。
In present thesis, the actual design theories and methods for super - low specific - speed pump are introduced first, including " the increased flowrate design method ", " the method of anti - hump on h ~ q characteristic curve ", " non - overload design method ", " the design method of complex impeller " and so on. according to these methods, 5 types of impeller have been designed
論文首先對極低比轉數離心泵的現行設計理論和設計方法作了介紹，包括加大流量設計法、減小或消除揚程曲線駝峰的途徑、無過載設計及復
合葉輪設計法等，並按照這些方法設計了五種
葉輪。
The distribution of adiabatic film - cooling effectiveness on the endwall of this cascade has been measured using a new technique that has been developed as part of this project. using this new technique, the achieved levels of cooling effectiveness are quantified and over, and under - cooled regions on the endwall are identified
在發展一種新的測試技術的基礎上，結
合葉柵下游流場測量，獲得了
葉柵端壁上冷卻膜隔熱效率的分佈，使得
葉柵端壁上下冷卻層的冷卻效率可分別定量描述。
First, this paper construct the mathematical model of blade according to the original data point of blade surface with 23 degree nurbs ( non - uniform - rational b - spline ) surface
首先，本文根據
葉片型面原始型值點數據信息，提出了較
合理的數學模型，採用23次非均勻有理b樣條擬
合葉片型面，成功的擬
合了
葉片空間型面。
Research on design for splitting vanes of compound centrifugal pump impeller
離心泵復
合葉輪短
葉片偏置設計研究
The hinges grated as the gate swung back
大門自動關上時，
合葉發出吱嘎的響聲
There was a seedy old chest, and an old hair trunk with the hinges broke
還有一隻破舊的木櫃，一隻帶毛的皮箱，上面的
合葉都已經裂開了。
Rge s door, and which merits a particular description. it was a little entrance that seemed never to have been opened since the house was built, so entirely was it covered with dust and dirt ; but the well - oiled hinges and locks told quite another story
它是一個小入口，門上灰塵滿布，象是自從房屋建成以來，從來不曾用過似的，但那油膏塗滿的
合葉和鎖卻顯示出它常常要被派上神秘的用途。
Combined with blade element theory, the results can be used to evaluate aerodynamic characteristics of flapping wings, which are helpful for the initial design of micro rotary and flapping wing
運用本文方法分析了各參數對翼型氣動特性的影響，進一步結
合葉素理論還可以估算撲翼的氣動特性，進而指導微旋翼或撲翼微型飛行器的初期設計。
Based on the computational fluid dynamics and structural dynamics methods, a numerical analysis system for the blade flutter in turbomachinery was established
在此基礎上，結
合葉片振動結構動力學分析，初步建立了相對完整的
葉片顫振數值分析系統。
Die buttons - variable, press fit
可變壓配
合葉模的
葉狀模槽
Bulb scales combining with leaf segment culture and rapid propagation of oriental hybrid lily
東方百
合鱗片結
合葉片切段培養快繁技術
This kind of composition of individuals in the car had had ye qinchen worried since he was notified by little six in the afternoon
對於今天這種車內人員的組合，葉侵晨早在下午接到小六子的通知的時候，就已經很擔心了。
