双晶

The optical waveguides fabricated by using single benzoic acid and 60% ratio dilution were analyzed by double crystal X-ray diffraction.

用双晶X射线衍射法对单苯甲酸和混合摩尔比为60%制作的光波导进行X射线衍射。

Plagioclase is usually white-colored with perfect cleavage and albite twin s.

斜长石通常呈白色，具有完全解理和聚片双晶。

Plagioclase is usually white-colored with perfect cleavage and albite twins.

斜长石通常呈白色，具有完全解理和聚片双晶。

In this paper, the basic principle of the conventional slip energy recovery induction motor drive is discussed. Two kinds of slip energy recovery induction motor driving systems with high factors are discussed, and the performance analysis of these methods is compared. On the basis of above, a new type of three-phase and four-line slip energy recovering drive is proposed.

本文首先从普通串调原理入手，简要分析了影响串调系统功率因数的主要因素；在对三相四线双晶闸管串级调速、新型GTO串级调速等几种高功率方案进行分析与比较的基础上，提出了一种新型三相四线制双IGBT串级调速控制方案。

A double-ball pick is used like a rake on double-wafer locks in conjunction with a tension wrench (two-pronged end).

双球车用像个耙双晶片锁连同张力扳手。

Double-wafer locks are easy to master if you have learned to pick pin and wafer tumbler locks.

双晶片锁容易掌握，如果你已学会、晶圆针挑不倒翁门锁。

You should feel confident with pin, wafer and double-wafer tumbler locks before you attempt rim cylinder locks.

你应该有信心同斌、晶片、双晶片锁在你试图不倒翁辋缸门锁。

2H2OO. Monoclinic. Crystal Duocheng plate, see also columnar, fibrous, and swallow-tailed double-crystal.

单斜晶系。晶体多呈板状，也见柱状、纤维状及燕尾状双晶。

Results revealed that tetraleg-nanorods are multi-crystalline, double-edged nanocombs with twins are bicrystalline, other structures, such as nanorods, namowires, nanobelts, nanoarays , nanomails, single-edged combs and nanosaws, are single wurtzite crystalline.

研究表明四针状纳米棒为多晶结构，孪晶双面纳米梳为双晶结构，纳米棒、纳米线、纳米带、纳米阵列、纳米钉以及多种单面齿状纳米结构均为单晶纤锌矿晶体结构。

Based on the equations, the position and attitude of micro flying robot with flapping wings can be controlled.For the rigid structure wing, a double rocker mechanism typical of two DOFs is designed, which is actuated by two PZTs. The mechanism can actuate the rigid wing to realize two DOFs movements. This mechanism has many characteristics, simple instructure, light in weight, reliable in movement, large in range, easy in drive and convenience in control.

设计了一个采用压电双晶片驱动的两自由度的双摇杆拍翅机构，该机构可以驱动刚性翅实现两自由度的拍翅运动，具有：结构简单、重量轻、动作可靠、拍动幅度大、驱动容易和控制方便等特点，适用于微型拍翅式飞行机器人的拍翅系统。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失