无法控制的

The key points of sensorless technology in PMBLDCM are to study a method which can detect rotor position accurately by simply method in whole speed range. After analyzing current sensorless methods of the PMBLDCM, it is found that those methods are successful at middle and high speed, but they often fail to detect rotor position at low speed when the back electromotive force is small or zero.

纵观目前的永磁无刷直流电机的无位置传感器控制方法，比较成熟而可行的方法多集中于电机在中高速区域运行时，能够较准确估计转子位置；电机处于低速、极低速、静止状态时电加热管，因为反电动势幅值较小或者为零，而无法正常工作。

The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。责任编辑：老漂

The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。

The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。英语四级

The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。来源：时代学习网-英语四级考试

The car is fitted with a remote immobiliser,and a radio signal from a control centre centimetres away will encertain those once the thief switches the engine off, he will not be able to start it one abundance time.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。

The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦8ttt8将车熄了火，就再也无法发动引擎。08年英语四级句子词汇真题训练及详解三

N.开关;转变,改变 switch one's position 改变立场;switch the light on/off 开/关灯 The car is fitted with a remote immobiliser,and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

车上安装了远程锁止器，几英里以外的控制中心发来的无线信号将会使偷车贼一旦将车熄了火，就再也无法发动引擎。

After trying in vain to control the unruly class, the young and inexperienced instructor had to admit that he was at eth end of his tether.

试图控制这个难弄的班级但不见生效后，这个缺乏经验的年轻教师不得不承认，他已无法可施。

Generally, the treatment group and the control group had positive conceptual change,but there still has some misconcepts hard to let students change in a short period,such as Linear A－Linear B.

整体看来，实验组和控制组在概念皆呈正向的改变。但是仍有一些迷思概念在短时间无法让学生产生良好的改变，例如线性迷思。

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